LIBRARY OF CONGRESS. 

@]ptp + - - ©qtijrig^t Tf tu 

. Shelf. 3. £6 



UNITED STATES OF AMERICA. 



CATALOGUE 



OF 



Duplex Steam Pumps. 



MANUFACTURED BY 



/ 

Barr Pumping Engine Company, 



Germantown Junction, Philadelphia, Pa= 



COPYRIGHT, 1892, 
BY BARR PUMPING ENGINE COMPANY, 



\ afr : 



PRINTED BY 

J. B. LIPPINCOTT COMPANY, 

PHILADELPHIA. 
I892. 



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ADDRESS ALL CORRESPONDENCE TO THE COMPANY. 



The Main Office and Works of this Company 

ARE AT 

GERMANTOWN JUNCTION, PHILADELPHIA, PA., 

[Nineteenth Street and Lehigh Avenue.] 



Take the Pennsylvania Railroad Cars to Germantown Junction, 

OR THE 

Philadelphia and Reading Cars to 16th Street Station. 
Both stations are within three squares of our works. 



PRICES WILL BE FURNISHED UPON APPLICATION, 



Specifications and Estimates will be Furnished for any Special 
Designs of Pumping Machinery. 



PRICKS AND SHIPMENTS, 

When prices are quoted for pumping machinery, they are for domestic shipment only. No charge will be 
made for boxing the small parts when pumps are skidded for ordinary shipment. In all cases requiring special 
boxing, an extra charge will be made, depending on the labor and material used, which will be charged for at 
net. cost. 

All shipments by railroad are F. O. B. Philadelphia, unless otherwise agreed upon. 

The shipping weight given in connection with any pump in this catalogue is that for the ordinary domestic 
shipment ; when specially caged or boxed, the weight will be correspondingly heavier. 



DUPLEX STEAM PUMPS. 



OFFICE OF 

Barr Pumping Engine Company, 

Germantown Junction, 
PHILADELPHIA, PA. 



We respectfully ask the attention of users of pumping machinery 
to the several designs submitted in this catalogue. We are pre- 
pared to furnish pumping machinery adapted for every service. As 
we confine ourselves to the manufacture of pumping and hydraulic 
machinery as a specialty, with facilities not surpassed in this country, 
we are enabled to give our customers a better designed, a better built, 
and a more serviceable steam- or power-pump than can be procured 
elsewhere, and at a cost, oftentimes, no greater than that paid for some 
of the imperfectly designed and badly built pumps offered to the trade. 

The illustrations in this catalogue correctly represent the general 
design of our pumping machinery ; many of the unimportant details 
being purposely omitted for the sake of clearness. The general tendency 
of all progressive establishments being towards the bettering of their de- 
signs, we reserve the right to change ours at any time, and any such 
change shall not be deemed a departure from the spirit and intent of 
this publication. 

THE DUPLEX PUMP 

Consists of two steam-pumps, of equal dimensions, placed side by side, 
with the valve-motion so designed that the movement of the steam- 
piston of each pump shall have the controlling movement of the slide- 
valve of the opposite pump ; the effect of which is to allow one piston 
to proceed to the end of the stroke, and gradually come to a state of 
rest; during the latter part of this movement, the opposite piston then 
moves forward in its stroke, and also gradually comes to a state of rest ; 
but in its movement forward, and before reaching the end of its stroke, 
the slide-valve controlling the first piston is reversed, and in consequence 
the- first piston returns to its original position, and in nearing the end of 
its stroke it, in a similar manner, reverses the slide-valve controlling the 
second piston ; these movements are both uniform and continuous so 
long as steam is supplied to the pistons. This form of valve-gear 
enables pumping-engines to be run at any desired rate of speed, fast 
or slow, and without the intervention of cranks, connecting-rods, fly- 
wheels, etc. 



BARR PUMPING ENGINE COMPANY. 



LENGTH OF STROKE. 



In ordinary short-stroke pumps the capacity of the water-end is 
limited not so much to the piston-speed in feet per minute as by the 
number of times a valve can safely and noiselessly open and close in a 
given time. To assume ioo feet per minute as an ordinary speed for 
pumps has been a time-honored practice ; it is obvious, however, that for 
short strokes it imposes an injurious rate of speed, to which a pump 
should not, in regular service, be subjected. For example, a pump having 

3-inches stroke must make 400 strokes per minute. 



4 

5 
6 

7 

8 

10 

12 



300 
240 
200 

171-f 

!5o 
120 

IOO 



As the above list of strokes represents lengths commonly in use, it 
needs no argument to show the absurdity of the ioo-feet basis of com- 
parison ; for pumps having a stroke of six inches and less, the number 
of strokes as given above is too great for continuous service. 

In designing our pumps we have increased the length of strokes for 
the diameter of plunger somewhat over the usual lengths assigned to 
duplex pumps. As this does not prevent running up to the number of 
strokes assigned to the shorter lengths, it is obvious that, for the same 
number of strokes, our pumps have a much larger capacity. 



Table showing the Number of Strokes Required to Attain a Piston Speed from 50 to 125 Feet 
per Minute for Pumps having Strokes from 3 to 18 Inches in Length. 



Speed of 

Piston in 

Feet per 

Minute. 








Length of Stroke in I 


S'CHES. 








3 


4 


5 


6 7 S 

1 1 


ao 


12 ! 


15 


18 








Number of Strokes per 


Minute. 








50 


200 


J 5° 


120 


j 00 


86 


75- 


60 


50 


40 


33 


55 


220 


165 


132 


no 


94 


82 


5 


66 


55 


44 


37 


60 


240 


180 


144 


120 


] o3 


90 




72 


60 


48 


40 


65 


260 


195 


156 


J3° 


111 


97 


5 


78 


65 


52 


43 


70 


280 


210 


168 


140 


120 


j 05 




84 


70 


56 


47 


75 


300 


225 


180 


150 


128 


112 


5 


90 


75 


60 


50 


80 


320 


240 


192 


160 


*37 


120 




96 


80 


64 


53 


85 


34o 


255 


204 


1 70 


146 


127 


5 


102 


85 


68 


57 


90 


360 


270 


216 


180 


154 


135 




108 


90 


72 


60 


95 


380 


285 


228 


190 


'163 


142 


5 


114 


95 


76 


63 


100 


400 


300 


240 


200 


171 


150 




120 


100 


80 


67 


105 


420 


3*5 


252 


210 


180 


157 


5 


126 


105 


84 


70 


110 


440 


330 


264 


220 


188 


165 




132 


no 


88 


73 


"5 


460 


345 


276 


230 


197 


172 


5 


138 


115 


92 


77 


120 


■ 480 


360 


288 


240 


206 


180 




144 


120 


96 


80 


125 


500 


375 


300 


250 


214 


187 


5 


150 


125 


IOO 


83 



Note. — To find the number of plunger displacements in a duplex pump multiply the number of strokes as 
given above by 2. 



DUPLEX STEAM PUMPS. 




SELF-CONTAIN ED DUPLEX PUMP. 

This pump is designed to meet a popular demand for a simple, compact, well built pump 
suitable for feeding steam-boilers, house service, locomotives, steam yachts, tugs, etc. 

This pump is of the piston pattern, brass lined, metal valves ; each pump is furnished with 
an air-chamber and a lubricator. 

Steam-cylinders, 3 inches diameter; water- cylinders, 2 inches diameter. All of 4 inches 
stroke. 

This pump has a displacement of .05 gallon for one stroke of one piston. 15 gallons per 
minute displacement is had at 150 strokes. 

Pipes — steam, y^\ exhaust, ^ ; suction, l% ; discharge, I. 



DUPLEX BOILER FEED-PUMPS. 



PLUNGER PATTERN. 



The engraving on the opposite page represents our standard duplex plunger pump, for 
feeding steam-boilers, or for any other service where a pressure not exceeding 150 pounds 
per inch may be required. This pump is noiseless in its operation, has plain, flat slide-valves 
driven by a positive movement outside of the steam-chest and in plain view at all times ; as 
our valve-motion has no dead-centre, the pump is always in readiness for service. The 
delivery of water is at all times constant and uniform. The speed can be regulated to the 
utmost nicety for any required service. Valves will be supplied with the pump for either hot 
or cold water, as may be desired. In making comparisons it should be borne in mind that 
our duplex pumps have two steam-cylinders and two double-acting plungers, therefore double 
the capacity of a single pump of the same dimensions. 



PARR PUMPING ENGINE COMPANY. 



DUPLEX BOILER FEED-PUMPS. 



PLUNGER PATTERN. 




3# 



=2 u. 

to bd 

a a 

C5 <D 



.23 <§ 



,3s 



&*=" 



068 



100 to 200 
100 to 200 



12 IOO tO 175 

21 IOO tO 175 

33 100 to 175 

24 I 100 to 150 

43 100 to 150 

43 100 to 150 



100 to 150 

75 to 125 
75 to 125 



-a ~ 

~ OS 

« s „• 



CJ5 



13 to 27 
20 to 40 

24 to 42 
42 to 74 

66 to 116 

48 to 72 
86 to 130 

86 to 130 
136 to 204 

81 to 135 
127 to 212 



Gallons Delivered by Both 
Plungers at a Mean of 
the Ordinary Strokes 
per Minute. 



Per 
Minute. 



Per Hour. 



20 

30 . 

33 
58 



60 
108 

108 
170 

108 
170 



1,200 
1,800 

1,980 
3.48o 

5,46o 

3,600 
6,480 

6,480 
10,200 

6,480 
10,200 



Diameter of Pipes 
in Inches. * 







a 

J 

CO 


X 

IH 


% 


I 


% 


I 


I 


I* 


I 


1% 


I 


*% 


I 


*% 


I 


* 


*% 


2 


*% 


2 


*x 


2 


*% 


2 



i# 


1 


*% 


*X 


*% 


*y* 


2 


*x 


3 


2 


2 


** 


3 


2 


3 


2 


4 


3 


3 


2 


4 


3 



PRICE. 



Note. — In a duplex pump the number of gallons delivered per minute is found by multi- 
plying the displacement of one plunger by twice the number of strokes. 

An extra charge will be made for bed-plates. Pumps can be brass-*fitted at a slight ad- 
vance over the regular prices given above. 

Sizes are designated by giving the diameter of steam-cylinders, the diameter of water- 
plungers, and the length of stroke : thus, 4 x 2 x 5 for the first pump in the table, and 
similarly for any other size. 



DUPLEX STEAM PUMPS. 



DUPLEX BOILER FEED-PUMPS. 



PISTON PATTERN. 




CO 

Si 

.9 

"P. 

C_D 

a 

CO 

Ct-H 

O 

Si 

<D 

a 
s 


3 

o 

CO 

Si 

CD 

o 

Si 

CD 

a 
s 

2 
2^ 

3# 

4 

3 
4 

4 

5 

4 
5 


CD 

o 

CO 

C4-« 

o 

S3 
►3 

5 

5 

6 
6 

6 

8 
8 

8 

8 

IO 
IO 


Si 

s3 

CO o 

S3 to 

;— I £X, 
C8 CD 

CD S3 

o 


Ordinary Strokes per Minute 
of One Piston. 


Gallons Delivered by Both 
Pistons at Stated Numb3r 
of Strokes per Minute. 


Gallons Delivered by Both 
Pistons at a Mean of 
the Ordinary Strokes 
per Minute. 


Diameter of Pipes 
in Inches. 


PRICE. 


"£2 ® 
S3 *d 

a^3 

gc/3 
c£ CD 

s 


Per 
Minute. 


Per Hour. 


a 

c£ 

co 
% 

K 

1 
1 

1 

1 
1 


to 

U 

X 
f£) 

I 
I 

*% 
*% 

2 
2 

2 
2 


S3 

O 

«D 

S3 
CO 

2 

3 

2 
3 

3 
4 

3 
4 


& 

Si 
CO 

3 


4 
4 

5 
5 

6 

6 
6 

7 
7 

8 
8 




.068 

.10 

12 
21 

33 
24 

43 

43 
68 

54 
85 


IOO to 200 
100 to 200 

100 to 175 
100 to 175 

100 to 175 

100 to 150 
100 to 150 

100 to 150 
100 to 150 

75 to 125 
75 to 125 


13 to 27 
20 to 40 

24 to 42 
42 to 74 

66 to 116 

48 to 72 
86 to 130 

86 to 130 
136 to 204 

81 to 135 
127 to 212 


20 
30 

33 

58 

9 1 

60 
108 

108 
170 

108 
170 


1,200 
1,800 

1,980 
3,480 

5,460 

3,600 
6,480 

6,480 
10,200 

6,480 
10,200 


I 

X* 

2 

2 

2 

3 

2 

3 





Afote. — In a duplex pump the number of gallons delivered per minute is found by multi- 
plying the displacement of one piston by twice the number of strokes. 

An extra charge will be made for bed-plates. Pumps can be brass-fitted at a slight ad- 
vance over the regular prices given above. 

Sizes are designated by giving the diameter of steam-cylinders, the diameter of water- 
pistons, and the length of stroke : thus, 4 x 2 x 5 for the first pump in the table, and 
similarly for any other size. 



BARR PUMPING ENGINE COMPANY. 



DUPLEX STEAM-PUMPS. 




LOW-SERVICE PUMPS LESS THAN 12 INCHES STROKE. 

PISTON PATTERN. 

The proportions between the steam- and water-cylinders in the preceding tables are often 
such as to be quite unsuitable in cases where the lifts are low or the water is to be used under 
very moderate pressures. In the proportions given in the following table the water-pistons 
approximate in diameter that of the steam-pistons. These pumps are particularly suited to 
railroad water-stations, dye-houses, print-works, oil refineries, hotels, laundries, private 
residences, etc. 



. 
















OB 


S-t 




o 










S3 


n 






















>-» 


s^. 








o 




M 


a 

S 

CO 

=►1 


CD 


J3 

o 

CO 






o 


'... 


Oh 


Sh 


S-. 






CD 


CD 


-a 


S3 


a 


a 


be 




3 


a 


CI 












'« 


i=) 


hJ 


O 


4 


3 


5 


•i5 


4 


4 


5 


.27 


5 


4 


6 


•33 


5 


5 


6 


•51 


6 


5 


8 


.68 


6 


6 


8 


.98 


7 


6 


8 


.98 


8 


6 


IO 


1.22 


8 


7 


IO 


1.66 



S- 



100 to 200 
100 to 200 

100 to 175 ! 
100 to 175 

i 
100 to 150 
100 to 150 j 



cq o 
« is 



30 to 60 
54 to 108 

66 to 115 

102 to 178 

136 to 204 
196 to 294 



100 to 150 196 to 294 



75 to 125 
75 to 125 



183 to 305 
249 to 415 



Gallons Delivered by Both 
Pistons at a Mean of 
the Ordinary Strokes 
per Minute. 



Diameter of Pipes 
in Inches. 



Per 

Minute. 



45 



9 1 
140 



170 
245 



245 



244 
332 



Per Hour. 



2,700 
4,860 

5,460 

8,400 

10,200 
14,700 

14,700 

14,640 
19,920 











Oi 


S3 ' 


1 


=3 
CI] 


■2 ! 




H 


rf 


co 


M 


6Q 


* 


I 


2 


K 


I 


2 


1 


Itf 


3 


1 


1# 


3 


1 


I# 


4 


1 


1/2 


4 


*X 


2 


5 


1% 


2 


4 


j 1/2 


2 


5 






2 J /4 
2}4 



PRICE. 



Note.— In a duplex pump ihe number of gallons delivered per minute is found by multiplying the dispU 
ment of one piston by twice the number of strokes. 



IO 



DUPLEX STEAM PUMPS. 



PISTONS. 




Pistons for the water-ends of our pumps will be made of any form 
suited to the work to be done. In general, the kind of piston as shown 
below, and adapted for fibrous packing, is the one which meets with 
popular favor for all average requirements. The packing may be of flax 
or hemp, braided square, and thoroughly saturated with a suitable lubri- 
cant or grease ; it should be cut in pieces corresponding to the circum- 
ference of the piston, and laid in layers 
one above the other, breaking joints 
between the alternate layers. When the 
proper amount of packing has been put 
in, the follower should be screwed up 
gently, so as to not compress the layers 
of packing, otherwise the packing will 
swell when the water comes in contact 
with it, and the result will be that the 
Fibrous packing. packing will become so tight that it 

would probably interfere with the smooth and regular action of the pump. 
There are cases in which the square flax or hemp packing is not so 

desirable as some of the forms of com- 
bined cotton and rubber packings, 
especially that known to the trade as 
Tuck's packing. This is the kind 
adopted by us for packing the piston- 
pumps before shipment from our works. 
When renewing this variety of pack- 
ing, the same precautions must be 
observed in breaking joints between 
alternate layers, and especially in re- 
gard to keeping the follower loosely against the packing. 

Cup-leather packings are frequently used for special work, and 
pistons corresponding in style to that shown in the sectional engraving 
will be furnished with any size of piston-pump, when so designated in 
the order. We have dies for making the cup-leathers, and can furnish 
new cup-packings made from specially tanned hydraulic leather. 

We can furnish pistons with metallic packing, similar to steam- 
pistons, where the service seems to require it ; in general, we do not 
recommend such pistons, as they are not so desirable as those adapted 
for fibrous packing, illustrated above. 




Cup-Leather Packing. 



BARR PUMPING ENGINE COMPANY. 



II 




CENTRALLY-PACKED PLUNGER-PUMP. 

This design is particularly well adapted for use where the water is muddy or contains grit. 
The plungers are centrally packed with fibrous packing, easily renewable. Valves supplied for 
either hot or cold water. 



E 

CD 

1 

cd 

CO 

o 

S-, 

<o 

cd 

a 

CS 


15 

CD 

fan 

a 

s 

p- 
i 

<x> 
"3 

o 

S-. 
CD 
CD 

a 

3 

S 


CO 

M 

o 

CO 

o 

f 

CD 


(4 

. 

£ Sb 

9 a 

O CD 

£3 
o 

CD A) 

1 2 

CD -+^» 
CJ CO 
,5 CD 
CO ^ 

s 


CD 

"S 
a 

*-• & 

g.fap 

p 

03 =* 

a> -=; 

S ® 

CO C3> 

b-s 

c« 

a 

!-• 




Gallons Delivered by Both 
Plungers at Stated Number 
of Strokes per Minute. 


Gallons Delivered by Both 
Plungers at a Mean of 
the Ordinary Strokes 
per Minute. 


Diameter of Pipes 
in Inches. 


PRICE. 


Per 

Minuts. 


Per Hour. 


a 



CO 


-a 
X 




CD 
S3 
CO 


crt 

O 


5 

6 

8 
8 

9 

io 


2^ 

3 

4 

5 

6 


6 
8 

IO 
IO 

12 

12 


.12 
•24 

■54 
■85 

1. 12 

i-47 


100 to 175 

100 to 150 

75 to 125 
75 to 125 

75 to 125 

75 to 125 


24 to 42 

48 to 72 

81 to 135 
127 to 212 

168 to 280 

220 to 367 


33 
60 

108 
170 

224 
294 


1,980 

3,600 

6,480 
10,200 

13,440 
17,640 


I 
I 

2 
2 


2 
2 

2^ 


2 

3 

4 

4 

5 


2 

3 
3 
4 





iV<?te. — In a duplex pump the number of gallons delivered per minute is found by multiplying the displace- 
ment of one plunger by twice the number of strokes. 

An extra charge will be made for bed-plates. Pumps can be brass- fitted at a slight advance over the regular 
prices given above. 

Sizes are designated by giving the diameter of steam-cylinders, the diameter of water-plungers, and the length 
of stroke ; thus, 5 x 2^ x 6 for the first pump in the table, and similarly for any other size. 



12 



DUPLEX STEAM PUMPS. 




BARR PUMPING ENGINE COMPANY. 



13 



DUPLEX PLUNGER-PUMP. 

This is a most desirable form of pump for small water-works, elevator service, marine 
service, rolling-mills, steel-works, blast furnaces, etc. 

Attention is specially directed to the manner in which the plunger-ring is made and secured 
to the pump-cylinder. It will be observed that the ring is supported at each end in a bored 
recess in the cylinder, and is securely bolted to a flange which is cast in and forms a part of the 
main cylinder casting, insuring not only a perfect alignment, but the utmost rigidity. The 
plungers and rings may be easily removed from the pump whenever desired, either for examina- 
tion or repairs. 



CO 

! 

;=) 

>> 
to 

a 

oa 

c*-i 


fa 

«D 
"S 

i 

s 


CO 

*-. 

S> 
_=( 

Oh 

t-c 

CO 

H 

0-1 


s~ 

1 




CO 



bo 

a 


Displacement in Gallons for 
One Stroke of One Plunger. 


Ordinary Strokes per Minuto 
of One Plunger. 


Gallons Delivered by Both 
Plungers at Stated Number 
of Strokes per Minute. 


Gallons Delivered by Both 
Plungers at 100 Strokes 
per Minute. 


Diameter of Pipes 
in Inches. 


PRICE. 


Per 
Minute. 


Per 
Hour. 


Per 
24 Hours. 


a 

c3 

53 


=1 

cS 

X 


d 




pi 
CO 



4 


bJO 
s~ 
cS 


Cfl 

3 


9 


5* 


12 


1. 12 


75 to 125 


168 to 280 


224 


13-440 


312,560 


2 


2% 




10 


51 


12 


1. 12 


75 to 125 


168 to 280 


224 


13,440 


312,560 


2 


2% 


4 


3 




8 


6 


12 


i-47 


75 to 125 


220 to 367 


294 


17,640 


423,3°° 


t-% 


2 


5 


4 




10 


6 


12 


i-47 


75 to 125 


220 to 367 


294 


17,640 


423,360 


2 


2^ 


5 


4 




12 


6 


12 


1.47 


75 to 125 


220 to 367 


294 


17,640 


423,360 


2^ 


3 


5 


4 




10 


7 


12 


2.00 


75 to 125 


300 to 500 


400 


24,000 


576,000 


2 


*y 2 


6 


5 




12 


7 


12 


2.00 


75 to 125 


300 to 500 


400 


24,000 


576,000 


2% 


3 


6 


5 




14 


7 


12 


2.00 


75 to 125 


300 to 500 


400 


24,000 


576,000 


3 


4 


6 


5 




10 


8 


12 


2.61 


75 to 125 


391 to 652 


522 


3 I ,3 2 o 


751,680 


2 


2% 


6 


5 




12 


8 


12 


2.61 


75 to 125 


391 to 652 


522 


31,320 


751,680 


2^ 


3 


6 


5 




14 


8 


12 


2.61 


75 to 125 


391 to 652 


522 


31,320 


751,680 


3 


4 


6 


5 




16 


8 


12 


2.61 


75 to 125 


391 to 652 


522 


31,320 


751,680 


3 


4 


6 


5 




12 


10 


12 


4.08 


75 to 125 


612 to 1020 


816 


48,960 


1,175,040 


2% 


3 


8 


7 




14 


10 


12 


4.08 


75 to 125 


612 to 1020 


816 


48,960 


1,175,040 


3 


4 


8 


7 




16 


10 


12 


4.08 


75 to 125 


612 to 1020 


816 


48,960 


1,175,040 


3 


4 


8 


7 




18 


10 


12 


4.08 


75 to 125 


612 to 1020 


816 


48,960 


1,175,040 


3 l A 


5 


8 


7 




20 


10 


12 


4.08 


75 to 125 


612 to 1020 


816 


48,960 


1,175,040 


3% 


5 


8 


7 




14 


12 


12 


5-8 7 


75 to 125 


880 to 1467 


1174 


70,440 


1,690,560 


3 


4 


10 


8 




16 


12 


12 


•5.87 


75 to 125 


880 to 1467 


1174 


70,440 


1,690,560 


3 


4 


10 


8 




18 


12 


12 


5-8 7 


75 to 125 


880 to 1467 


"74 


70,440 


1,690,560 


lY* 


5 


10 


8 




20 


12 


12 


5.87 


75 to 125 


880 to 1467 


1174 


70,440 


1,690,560 


3^2 


5 


10 


8 




22 


12 


12 


5.87 


75 to 125 


880 to 1467 


1174 


70,440 


1,690,560 


4 


6 


10 


8 




24 


12 


12 


5.87 


75 to 125 


880 to 1467 


1174 


70,440 


1,690,560 


4 


6 


10 


8 





Note. — In a duplex pump the number of gallons delivered per minute is found by multiplying the displace- 
ment of one plunger by twice the number of strokes. 

An extra charge will be made for bed-plates. Pumps can be brass-fitted at a slight advance over the regular 
prices gi%'en above. 

Sizes are designated by giving the diameter of steam-cylinders, the diameter of water-plungers, and the length 
of stroke ; thus, 9 x 5^ x 12 for the first pump in the table, and similarly for any other size. 

4®=* The above pumps are designed for any service in which the water-pressure does not exceed 150 pounds 
per square inch. 



H 



DUPLEX STEAM PUMPS. 




DUPLEX PISTON-PUMP. 



Piston-pumps having a stroke of 12 inches or more are all made 
with removable linings, as shown in the above sectional elevation. These 
linings are made of hard brass, and so arranged that they can be partially 
turned around in position so as to present a new wearing surface on the 
bottom should it ever become necessary ; or, in case of wear so as to re- 
quire a new lining, it can be furnished and applied in position without 
disturbing the pump on its foundation. 

The valve-area and water-ways in these pumps are very large, and 
admit of high speeds without noise or concussion. 

These pumps will be specially fitted for any service out of the usual 
practice. In comparing these pumps with single-cylinder pumps, the 
fact that ours has two double-acting pistons, and, therefore, double the 
capacity of the single-cylinder pumps, must not be overlooked. 



BARR PUMPING ENGINE COMPANY. 



15 



DUPLEX STEAM-PUMPS. 

PISTON PATTERN FOR GENERAL SERVICE. 

These pumps are all double-acting and fitted with rubber valves, 
brass seats, guards, and springs suitable for pumping cold water. Metal 
or any other kind of valves can be furnished, together with special seats, 
guards, and springs suited to any particular requirement. 



£ 

% 
3 
*►> 

i 
& 

CO 

"S 

h 


a 



s 
J* 

cm 

O 

H 

-2 
3 





Si 
CO 

CM 

O 

a 

CD 


t-. 

c2 

si 

O CO 

^s 

' H «M 



« CD 

2^ 

a 2 
.3 

M M 
&§ 

.52 


S 

=1 
a 

S 
S ° 

Oil"* 

gS 

A) 

S =" 

M CM 

3 

a 

^3 
3 



Gallons Delivered by Both 
Pistons at Stated Number 
of Strokes per Minute. 


Gallons Delivered by Both 
Pistons at 100 Strokes 
per Minute. 


Diameter of Pipes 
in Inches. 


PRICE. 


Per 
Minute. 


Per 
Hour. 


Per 
24 Hours. 


a 

cd 



CO 

1/2 


cd 

-a 
X 

2 


d 



5 


CD 

be 

M 

cd 


3 
4 


8 


6 


12 


i-47 


75 to 125 


220 to 367 


294 


17,640 


4 2 3>36o 




10 


6 


12 


i-47 


75 to 125 


220 to 367 


294 


17,640 


423,360 


2 


2^ 


5 


4 




12 


6 


12 


1-47 


75 to 125 


220 to 367 


294 


17,640 


423,360 


2^ 


3 


5 


4 




10 


7 


12 


2.00 


75 to 125 


300 to 500 


400 


24,000 


576,000 


2 


2^ 


6 


5 




12 


7 


12 


2.00 


75 to 125 


300 to 500 


400 


24,000 


576,000 


2^ 


3 


6 


5 




14 


7 


12 


2.00 


75 to 125 


300 to 500 


400 


24,000 


576,000 


3 


4 


6 


5 




10 


8 


12 


2.61 


75 to 125 


391 to 652 


522 


31,320 


751,680 


2 


2^ 


6 


5 




12 


8 


12 


2.61 


75 to 125 


391 to 652 


522 


S 1 ^ 20 


751,680 


2^ 


3 


6 


5 




*4 


8 


12 


2.61 


75 to 125 


391 to 652 


522 


31,320 


751,680 


3 


4 


6 


5 




16 


8 


12 


2.61 


75 to 125 


391 to 652 


522 


31,320 


751,680 


3 


4 


6 


5 




12 


10 


12 


4.08 


75 to 125 


612 to 1020 


816 


48,960 


1,175,040 


2^ 


3 


8 


7 




14 


10 


12 


4.08 


75 to 125 


612 to 1020 


816 


48,960 


1,175,040 


3 


4 


8 


7 




16 


10 


12 


4.08 


75 to 125 


612 to 1020 


816 


48,960 


1,175,040 


3 


4 


8 


7 




18 


10 


12 


4.08 


75 to 125 


612 to 1020 


816 


48,960 


i, 1 75 ,040 


3'A 


5 


8 


7 




20 


10 


12 


4.08 


75 to 125 


612 to 1020 


816 


48,960 


1,175,040 


3 l A 


5 


8 


7 




14 


12 


12 


5-87 


75 to 125 


880 to 1467 


"74 


70,440 


1,690,560 


3 


4 


10 


8 




16 


12 


12 


5-87 


75 to 125 


880 to 1467 


1174 


70,440 


1,690,560 


3 


4 


10 


8 




18 


12 


12 


5-8 7 


75 to 125 


880 to 1467 


1 174 


70,440 


1,690,560 


3% 


5 


10 


8 




20 


12 


12 


5-87 


75 to 125 


880 to 1467 


1174 


70,440 


1,690,560 


3 T A 


5 


10 


8 




22 


12 


12 


5-87 


75 to 125 


880 to 1467 


1174 


70,440 


1,690,560 


4 


6 


10 


8 




24 


12 


12 


5.87 


75 to 125 


880 to 1467 


"74 


70,440 


1,690,560 


4 


6 


10 


8 




18 


14 


12 


8.00 


75 to 125 


1200 to 2000 


1600 


96,000 


2,304.000 


3% 


S 


12 


10 




20 


14 


12 


8.00 


75 to 125 


1200 to 2000 


1600 


96,000 


2,304,000 


3% 


5 


12 


10 




22 


14 


12 


8.00 


75 to 125 


1200 to 2000 


1600 


96,000 


2,304,0:0 


4 


6 


12 


10 




24 


14 


12 


8.00 


75 to 125 


1200 to 2000 


1600 


a 6, 000 


2,304,000 


4 


6 


12 


10 





Note. — In a duplex pump the number of gallons delivered per minute is found by multiplying the displace- 
ment of one piston by twice the number of strokes. 

An extra charge will be made for bed-plates. Pumps can be brass-fitted at a slight advance over the regular 
prices given above. 

Sizes are designated by giving the diameter of steam-cylinders, the diameter of water-pistons, and the length 
of stroke; thus, 8 x 6 x 12 for the first pump in the table, and similarly for any other size. 

43^ The above pumps are designed for any service in which the water-pressure does not exceed 150 pounds 
per square inch. 



i6 



DUPLEX STEAM PUMPS. 



DUPLEX LOW-SERVICE PUMPS. 

The proportion of steam-piston to plunger area in the preceding 
tables is often greater than is necessary for low lifts or moderate press- 
ures. In the list of pumps given below the steam-pistons are, with but 
few exceptions, less in diameter than the pump-plungers. 

This is a pump well adapted for print-works, bleacheries, railroad 
water-supply stations, tank service for oil lines, etc. 



co 

"P. 

a 

c3 

-2 

1*3 

e«-i 
o 
S-. 

a 
.a 


go 

co 

be 

a 
_=* 

S-. 

o 

.a 

6 


o5 

M 



S-, 

00 

eu 
O 

-g 

a 

49 

>-3 


W tUD 

£3 S 
O =S 

-t^> ° 

3 £ 

J 53 


"5 
a 

S 

O 03 
OQ O 

oS 

O 


Gallons Delivered by Beth 
Plungers at Stated Number 
of Strokes per Minute. 


Gallons Delivered by Both 
Plungers at 100 Strokes 
per Minute. 


Diameter of Pipes 
in Inches. 


PRICE. 


Per 

Minute. 


Per 
Hour. 


Per 
24 Hours. 


a 

CD 

00 


-a 

X 

2 



00 

5 


CD 

ho 
>-. 
eS 

ft? 

s 


6 


12 


i-47 


75 to 125 


220 to 367 


294 


17,640 


4 2 3,3 6 ° 


I J* 


4 




7 


6 


12 


i-47 


75 to 125 


220 to 367 


294 


17,640 


4 2 3,3 6 ° 


1/2 


2 


5 


4 




8 


6 


12 


i-47 


75 to 125 


220 to 367 


294 


17,640 


4 2 3,3 60 


1% 


2 


5 


4 




6 


7 


12 


2.00 


75 to 125 


300 to 500 


400 


24,000 


576,000 


*% 


2 


6 


5 




7 


7 


12 


2 00 


75 to 125 


300 to 500 


400 


24 ,000 


576,000 


*x 


2 


6 


5 




8 


7 


12 


2.00 


75 to 125 


300 to 500 


400 


24,000 


576,000 


*% 


2 


6 


5 




6 


8 


12 


2.61 


75 to 125 


391 to 652 


522 


3*,3' 20 


751,680 


*x 


2 


6 


5 




7 


8 


12 


2.61 


75 to 125 


391 to 652 


522 


3 1 ,3 2 ° 


751,680 


*% 


2 


6 


5 




8 


8 


12 


2.61 


75 to 125 


391 to 652 


522 


3 I »3 2 ° 


751,680 


1/2 


2 


6 


5 




9 


8 


12 


2.61 


75 to 125 


391 to 652 


522 


3 I >3 2 ° 


751,680 


2 


2 ^ 


6 


5 




6 


IO 


12 


4.08 


75 to 125 


612 to 1020 


816 


48,960 


1,175,040 


I#j 2 


8 


7 




7 


IO 


12 


4.08 


75 to 125 


612 to 1020 


816 


48,960 


1,175,040 


l}*j 2 


8 


7 




8 


IO 


12 


4.08 


75 to 125 


612 to 1020 


816 


48,960 


1,175,040 


iy 2 \ 2 


8 


7 




9 


IO 


12 


4.08 


75 to 125 


612 to 1020 


816 


48,960 


1,175,040 


2 


2 / 2 


8 


7 




IO 


IO 


12 


4.08 


75 to 125 


612 to 1020 


816 


48,960 


1,175,040 


2 


2 K 


8 


7 




6 


12 


12 


5.87 


75 to 125 


880 to 1467 


1174 


70,440 


1,690,560 


1/2 


2 


10 


8 




7 


12 


12 


5.87 


75 to 125 


880 to 1467 


1174 


70,440 


1,690,560 


i* 


2 


10 


8 




8 


12 


12 


5.87 


75 to 125 


880 to 1467 


1174 


70,440 


1,690,560 


*X 


2 


IO 


8 




9 


12 


12 


5.87 


75 to 125 


880 to 1467 


1 1 74 


70,440 


1,690,560 


2 


2 /2 


IO 


8 




IO 


12 


12 


5.87 


75 to 125 


880 to 1467 


1174 


70,440 


1,690,560 


2 


2 ^ 


IO 


8 




12 


12 


12 


5-87 


75 to 125 


880 to 1467 


1174 


70,440 


1,690,560 


2% 


3 


IO 


8 




IO 


14 


12 


8.00 


75 to 125 


1200 to 2000 


1600 


96,000 


2,304,000 


2 


2V2 


12 


10 




12 


14 


12 


8 00 


75 to 125 


1200 to 2000 


1600 


96,000 


2,304,000 


2% 


3 


12 


10 




14 


14 


12 


8 00 


75 to 125 


1200 to 2000 


1600 


96,000 


2,304,000 


3 


4 


12 


10 




16 


14 


12 


8.00 


75 to 125 


1200 to 2000 


1600 


96,000 


2,304,000 


3 


4 


12 


10 





Note. — In a duplex pump the number of gallons delivered per minute is found by multiplying the displace- 
ment of one plunger by twice the number of strokes. 

An extra charge will be made for bed-plates. Pumps can be brass-fitted at a slight advance over the regular 
prices given above. 

Sizes are designated by giving the diameter of steam-cylinders, the diameter of water-plungers, and the length 
of stroke ; thus, 6 x 6 x 12 for the first pump in the table, and similarly for any other size. 



BARR PUMPING ENGINE COMPANY. 



17 



VALVE-SEATS. 





The valve-seats are screwed into place, the valves being of vulcan- 
ized rubber carefully selected for the purpose. On the top of each valve 
is a brass plate to distribute the pressure and relieve the valve of the 
destructive action of the spring. The valve-stem and valve-seat, as de- 
signed for our pumps, are both contained in the same casting, so that 
the stem can never wear or shake loose. Parallel spiral-springs are used. 
The valve-nut screws on a taper thread cut on top of the stem ; imme- 
diately over the nut a hole is drilled through the stem and a brass split- 
pin inserted, so that under no circumstances short of actual breakage 
can a valve ever get adrift in water-ends of our construction. 

VALVES. 



Customers will greatly aid us in the selection of valves if, when 
ordering a pump, they will specify the kind of liquid to be pumped, and 
whether it is hot or cold. 

For cold water we furnish a moderately soft vulcanized valve, which 
will easily adapt itself to the seat to which it is fitted. 

For hot water we use a hard vulcanized valve, specially prepared for 
this kind of work. These valves being inflexible, are carefully ground 
and scraped to face plates to insure their being perfectly flat ; or, if pre- 
ferred, we will furnish brass valves, faced and scraped true as above. 

For alkaline liquor we furnish malleable-iron valve-seats and nuts, 
with steel springs. The valves will be either of malleable iron or any 
composition which will remain unaffected by chemical action. 

For weak acids gun-metal valves are usually preferred. By reason 
of the varying effects of different acids upon the ordinary metals of con- 
struction, we should be advised as to the kind and strength of acidulated 
liquor to be pumped. We will then fit the valves and seats so as to best 
withstand any corrosive action. 



i8 



DUPLEX STEAM PUMPS. 



DUPLEX INSIDE-PACKED 

PLUNGER-PUMP. 




The inside-packed plunger-pump, as shown above, is a modified 
form of the one illustrated on page 12. It preserves all the valuable 
features contained in our regular plunger pattern, the addition of a 
stuffing-box and gland, adapted for packing the plunger with a flexible 
or fibrous packing, constituting the only change. 

This pump is chiefly desirable in localities where the water supply is 
muddy or contains gritty matter. Tuck's packing is recommended for 
use in these pumps, and one set will be included in the pump at ship- 
ment. This form of pump is to be preferred over a piston-pump for 
gritty water, inasmuch as the cost of a new plunger is very much less 
than that of a new lining. There is the further advantage in the fact 
that slight reductions can be made in the diameter of the plunger by 
turning in a lathe to remove the scoring incident to the service in which 
it may be employed, the difference in diameter being made good by the 
use of a thicker packing. 

The engraving shows the pump fitted with end-suction ; this being 
the most convenient, is the one generally adopted by engineers. We will, 
whenever desired, fit pumps with a cross-suction pipe, so that a suction 
connection can be had on either side of the pump ; or, in case of two 
sources of supply, either may be used by simply shutting off the one 
not needed. 



PARR PUMPING ENGINE COMPANY. 



19 



DUPLEX STEAM-PUMPS. 

INSIDE-PACKED PLUNGER PATTERN. 

The engraving on the opposite page represents our standard design 
for duplex steam-pump, fitted with inside-packed plunger. These pumps 
are all double-acting and fitted with rubber valves, brass seats, guards, 
and springs suitable for pumping cold water. Metal or any other kind of 
valves can be furnished, together with special seats, guards, and springs 
suited to any particular requirement. 



g 

g 

B 
eS 
eg 

CO 


J-. 

a 

— 

8 


(-1 



bfl 

S3 

P= 

C«-l 

O 

S-i 

CD 

1 



co 

"0 

-a 

~S> 
S3 


Displacement in Gallons for 
One Stroke of One Plunger. 


Ordinary Strokes per Minuto 
of One Plunger. 


Gallons Delivered by Both 
Plungers at Stated Number 
of Strokes per Minute. 


Gallons Delivered by Both 
Plungers at 100 Strokes 
per Minute. 


Diameter of Pipes 
in Inches. 


PRICE. 


Per 

Minute. 


Per 

Hour. 


Per 
24 lours. 


3 

si 

<xt 

CO 


1 

X 
W 

2 


d 


5 



5 



CO 



4 


6 


12 


i-47 


„ 75 to 125 


220 to 367 


294 


17,640 


423,360 


*x 




10 


6 


12 


1.47 


75 to 125 


220 to 367 


294 


17,640 


4 2 3,3 60 


2 


2% 


5 


4 




12 


6 


12 


i-47 


75 to 125 


220 to 367 


294 


17,640 


423,360 


2% 


3 


5 


4 




10 


7 


12 


2.00 


75 to 125 


300 to 500 


400 


24,000 


576,000 


2 


ZJ4 


6 


5 




12 


7 


12 


2.00 


75 to 125 


300 to 500 


400 


24,000 


576,000 


2>2 


3 


6 


5 




14 


7 


12 


2.00 


75 to 125 


300 to 500 


400 


24,000 


576,000 


3 


4 


6 


5 




10 


8 


12 


2.61 


75 to 125 


391 to 652 


522 


31,320 


751,680 


2 


*x 


6 


5 




12 


8 


12 


2.61 


75 to 125 


391 to 652 


522 


S 1 ^ 20 


751,680 


2H 


3 


6 


5 




14 


8 


12 


2.61 


75 to 125 


391 to 652 


522 


31,320 


751,680 


3 


4 


6 


5 




16 


8 


12 


2.61 


75 to 125 


391 to 652 


522 


31,320 


751,680 


3 


4 


6 


5 




12 


10 


12 


4.08 


75 to 125 


612 to 1020 


816 


48,960 


1,175,040 


2^ 


3 


8 


7 




14 


10 


12 


4.0S 


75 to 125 


612 to 1020 


816 


48,960 


1,175,040 


3 


4 


8 


7 




16 


10 


12 


4.08 


75 to 125 


612 to 1020 


816 


48,960 


1,175,040 


3 


4 


8 


7 




18 


10 


12 


4.08 


75 to 125 


612 to 1020 


816 


48,960 


1,175,040 


3% 


5 


8 


7 




20 


10 


12 


4.08 


75 to 125 


612 to 1020 


816 


48,960 


1,175,040 


3 l A 


5 


8 


7 




14 


12 


12 


5.87 


75 to 125 


880 to 1467 


1174 


70,440 


1,690,560 


3 


4 


10 


8 




16 


12 


12 


5-87 


75 to 125 


880 to 1467 


1174 


70,440 


1,690,560 


3 


4 


10 


8 




18 


12 


12 


5.87 


75 to 125 


880 to 1467 


"74 


70,440 


1,690,560 


3 l A 


5 


10 


8 




20 


12 


12 


5.87 


75 to 125 


880 to 1467 


1174 


70,440 


1,690,560 


zV* 


5 


10 


8 




22 


12 


12 


5-8 7 


75 to 125 


880 to 1467 


1174 


70,440 


1,690,560 


4 


6 


10 


8 




24 


12 


12 


5-8 7 


75 to 125 


880 to 1467 


1174 


70,440 


1,690,560 


4 


6 


10 


5 





Note. — In a duplex pump the number of gallons delivered per minute is found by multiplying the displace- 
ment of one plunger by twice the number of strokes. 

An extra charge will be made for bed-plates. Pumps can be brass-fitted at a slight advance over the regular 
prices given above. 

Sizes are designated by giving the diameter of steam-cylinders, the diameter of water-plungers, and the length 
of stroke ; thus, 8 x 6 x 12 for the first pump in the table, and similarly for any other size. 

4®=" The above pumps are designed for any service in which the water-pressure does not exceed 150 pounds 
per square inch. 



20 



DUPLEX STEAM PUMPS. 




BARE PUMPING ENGINE COMPANY. 



21 



DUPLEX STEAM-PUMPS. 
OUTSIDE-PACKED PLUNGER PATTERN. 

The pump illustrated on the opposite page is of a type much in 
favor with furnace, rolling-mill, and steel-works managers. The only 
advantage which it possesses over the one shown on page 18 is that the 
plungers have outside stuffing-boxes, and are, therefore, much more 
easily examined and packed. 

This type of pump is also largely used in the Western States for 
water-works service, and is the simplest and best form of outside-packed 
plunger-pump now offered to the trade. 

These pumps are all double-acting and fitted with rubber valves, 
brass seats, guards, and springs suitable for pumping cold water. Metal 
or any other kind of valves can be furnished, together with special seats, 
guards, and springs suited to any particular requirement. 



2* 


S-. 










■n 


bo 




a 


S3 




■^ 


=3 




>> 


Oh 




a 
s 
& 

oo 


CD 
"3 


09 


P* 







e*-i 




o 






























a 


a 


bo 














« 


« 


■-a 


IO 


6 


12 


12 


6 


12 


12 


7 


12 


H 


7 


12 


12 


8 


12 


H 


8 


12 


16 


8 


12 


i4 


10 


12 


16 


10 


12 


18 


10 


12 


20 


10 


12 


16 


12 


12 | 


18 


12 


12 


20 


12 


12 


22 


12 


12 


2 4 


12 


12 



h- 






&o 




S3 





S3 


=3 


04 


cS 


03 




d 


a 

















« 


<x> 


OJ 


M 


a 








GO 








S3 




O 


« 





i-47 

i-47 

2.00 
2.00 

2.61 
2.61 
2.61 

4.08 
4.08 
4.08 
4.08 

5.87 
5-8 7 
5-87 
5-8 7 
5-8 7 



S_ CO 

co bo 
a. S 
to tf 

s- S3 

>> 5 o 



75 to 125 
75 to I2 5 

75 to 125 
75 to 125 

75 to 125 
75 to 125 
75 to 125 

75 to 125 

75 to 125 
75 to 125 
75 to 125 

75 to 125 
75 to 125 
75 to 125 
75 to 125 
75 to 125 



:5 a> 
"0.0 
M a . 
5 a> 

S3 *2 

»g 

e-S s- 

^M ® 
•~* «T 

M& o 



220 to 
220 to 



307 

307 



300 to 500 

300 to 500 

391 to 652 

391 to 652 

391 to 652 



880 to 1467 
880 to 1467 
880 to 1467 
880 to 1467 
880 to 1467 



Gallons Delivered by Both 
Plungers at 100 Strokes 
per Minute. 



Per ! 
Minute. ! 



612 to 1020 816 

612 to 1020 816 

612 to 1020 I 816 

612 to 1020 1 816 



294 
294 

400 
400 

522 
522 
522 



1174 
1174 
1174 
1174 
1 174 



Per 
Hour. 



Per 
24 lours. 



17,640 
17,640 



24,000 576,000 
24,000 j 576,000 



751,680 
751,680 

31,320 ! 751,680 



3 I >3 2 o 
3 X ,3 2 ° 



48,960 j 1,175,040 

48,960 1 1,175,040 

48,960 I 1,175,040 

48,960 1,175,040 



70,440 
70,440 
70,440 
70,440 
70,440 



1,690,560 
1,690,560 
1,690,560 
1,690,560 
1,690,560 



Diameter of Pipes 
in Inches. 



423,360 J 2 
423,360 2% 



2% 

3 

2% 

3 
3 

3 
3 

3% 

3 
3% 

3/2 

4 

4 







53 


S3 


03 

-a 




H 


S3 


S3 


CO 


2^ 


5 


3 


5 


3 


6 


4 


6 


3 


6 


4 


6 


4 


6 


4 


8 


4 


8 


5 


8 


5 


8 


4 


10 1 


5 


10 


5 


10 


6 


10 


6 


10 



PRICE. 



Note. — In a duplex pump the number of gallons delivered per minute is found by multiplying the displace- 
ment of one plunger by twice the number of strokes. 

An extra charge will be made for bed-plates. Pumps can be brass-fitted at a slight advance over the regular 
prices given above. 

Sizes are designated by giving the diameter of steam-cylinders, the diameter of water-plungers, and the length 
of stroke ; thus, 10 x 6 x 12 for the first pump in the table, and similarly for any other size. 



DUPLEX STEAM PUMPS. 



DUPLEX CENTRALLY-PACKED PLUNGER-PUMP. 




X 

<3- 



.2 



These pumps can be fitted with compound steam-ends, as illustrated on page 54. 

For list of sizes, see page 55. 



BARR PUMPING ENGINE COMPANY. 



23 



CENTRALLY-PACKED DUPLEX PLUNGER-PUMP. 



This style of pump is well adapted for use in any locality where the 
water is muddy or contains grit. The water-end is made of two separate 
castings, which permits the use of steam-cylinders of a larger diameter 
than in the standard plunger pattern. 

The stuffing-boxes are large and deep, and adapted for the use of 
Tuck's or other fibrous packing. 

This water-end is well suited to higher pressures than 150 pounds 
per square inch. We shall be glad to submit designs for pumps of this 
style suitable for any required pressure. 





TS 
1=1 

^3 
>■» 

C3 

a 

Ed 

-S 
co 


s* 

"3 
B 
3 

S 


Si 

« 

feO 

a 
_a 

s- 



<— < 


a 

S 




co 


-a 

u> 

a 
►3 


s-. 
co &> 

^ 5 

O =3 

a 
a<=> 

^ 
(=5 


Ordinary Strokes per Minuto 
of One Plunger. 


Gallons Delivered by Both 
Plungers at Stated Number 
of Strokes per Minute. 


Gallons Delivered by Both 
Plungers at 100 Strokes 
per Minute. - 


Diameter of Pipes 
in Inches. 


PRICE. 


Per 
Minute. 


Per 
Hour. 


Per 

24 Hours. 


a' 

CO 


a 
cS 
-a 
>4 

2 


a 


a 

CO 

5 



fee 

S-c 

s 

.a 


s 

4 


8 


6 


12 


1-47 


75 to 125 


220 to 367 


294 


1 7,640 


423,360 


*y* 




10 


6 


12 


1-47 


75 to 125 


220 to 367 


294 


17,640 


423,36° 


2 


? l /2 


5 


4 




12 


6 


12 


i-47 


75 to 125 


220 to 367 


294 


17,640 


423,360 


2^ 


3 


5 


4 




10 


7 


12 


2.00 


75 to 125 


300 to 500 


400 


24,000 


576,000 


2 


2K 


6 


5 




12 


7 


12 


2.00 


75 to 125 


300 to 500 


400 


24,000 


576,000 


2^ 


3 


6 


5 




14 


7 


12 


2.00 


75 to 125 


300 to 500 


400 


24,000 


576,000 


3 


4 


6 


5 




10 


8 


12 


2.61 


75 to 125 


391 to 652 


522 


3 T ,3 2 


751,680 


2 


2% 


6 


5 




12 


8 


12 


2.61 


75 to 125 


391 to 652 


522 


31,320 


751,680 


2^ 


3 


6 


5 




14 


8 


12 


2.61 


75 to 125 


391 to 652 


522 


31,320 


751,680 


3 


4 


6 


5 




16 


8 


12 


2.61 


75 to 125 


391 to 652 


522 


V,?,™ 


751,680 


3 


4 


6 


5 




12 


10 


12 


4.08 


75 to 125 


612 to 1020 


816 


48,960 


1,175,040 


2^ 


3 


8 


7 




14 


10 


12 


4.08 


75 to 125 


612 to 1020 


816 


48,960 


1,175,040 


3 


4 


8 


7 




16 


10 


12 


4.08 


75 to 125 


612 to 1020 


816 


48,960 


!, I 75,040 


3 


4 


8 


7 




18 


10 


12 


4.08 


75 to 125 


612 to 1020 


816 


48,960 


1,175,040 


3% 


5 


8 


7 




20 


10 


12 


4.08 


75 to 125 


612 to 1020 


816 


48,960 


1,175,040 


3/2 


5 


8 


7 




14 


12 


12 


5-8 7 


75 to 125 


880 to 1467 


1174 


70,440 


1,690,560 


3 


4 


10 


8 




x6 


12 


12 


5-8 7 


75 to 125 


880 to 1467 


1174 


70,440 


1,690,560 


3 


4 


10 


8 




18 


12 


12 


5.87 


75 to 125 


880 to 1467 


1174 


70,440 


1,690,560 


3 l A 


5 


10 


8 




20 


12 


12 


5.87 


75 to 125 


880 to 1467 


1174 


70,440 


1,690,560 


3 l A 


5 


10 


8 




22 


12 


12 


5.87 


75 to 125 


880 to 1467 


1174 


70,440 


1,690,560 


4 


6 


10 


8 


■ 


24 


12 


12 


5-87 


75 to 125 


880 to 1467 


1174 


70,440 


1,690,560 


4 


6 


10 


8 





Note. — In a duplex pump the number of gallons delivered per minute is found by multiplying the displace- 
ment of one plunger by twice the number of strokes. 

An extra charge will be made for bed-plates. Pumps can be brass-fitted at a slight advance over the regular 
prices given above. 

Sizes are designated by giving the diameter of steam-cylinders, the diameter of water-plungers, and the length 
of stroke ; thus, 8 x 6 x 12 for the first pump in the table, and similarly for any other size. 

4®= The above pumps are designed for any service in which the water-pressure does not exceed 150 pounds 
per square inch. 



24 



DUPLEX STEAM PUMPS. 




CO 








Pu 








§ 








£ 








cu 








K 




t/5 




w 








O 


CO 


a 




£ 


Q 




r^. 


D 


O 


<n — * 


-d 


•J 


W 






PU 






m 




J 


a ^ 


u-> 


Q 


w 
•J 


° en 

"t3 biO 


a 


W 


J 


£ a, 


<U 


o 


< 


^ S 


m 


< 


ti 


oj o 


CD 


PU 

1 

w 


< 

PU 


a be fi 
stratec 


N 

"tn 

O 




E 


« ,2 

o £3 


-4-* 

cn 


CO 


H 


a, £ 

a rt 

a 


Ih 






£ 


O 




en 




X 




H 




w 








J 








& 








D 








Q 









BARR PUMPING ENGINE COMPANY. 



25 



DUPLEX OUTSIDE-PACKED PLUNGER-PUMPS, 
WITH PARALLEL RODS. 



This type of pump is the one generally employed in steel-works, 
rolling-mills, blast furnaces, etc., for tank service and general supply. 
The muddy and gritty water incident to the sudden rise of a river after 
a severe storm, has little or no effect on the plungers, which are loosely 
packed with fibrous packing. 









hi . 


05 


-s5 >a 












hi 

05 

T3 

.5 

"?» 

s 

05 

CO 



hi 
45 

05 

a 

S 
12 


hi 

05 

bo 

S3 
hi 




c2 hi 

CO bp 

=* 

rb 05 


is 

fe 05 


d by Bot 
ited Numbe 
Minute. 


Gallons Delivered by Both 
Plungers at a Mean of 
the Ordinary Strokes per 
Minute. 


Diameter of Pipes 
in Inches. 

(Subject to Change.) 





hi 

05 

10 


05 

M 



co 

4-1 

O 

bb 

05 
h^ 

l8 




a 2 
■as 

•So 


Ordinary Strokes 
of One Plu 


Gallons Delivere 
Plungers at Sti 
cf Strokes per 










PRICE. 


Per 

Minute. 

814 


Per 
Hour. 


Per 
24 Hours. 


i 

CO 


1 
•a 

3 





!=! 
CO 

IO 


05 

bo 

3 

-a 


s 

8 


6.12 


53 to 80 


648 to 979 


48,837 


1,172,092 


*A 




14 


10 


18 


6.12 


53 to 80 


648 to 979 


814 


48,837 


1,172,092 


3 


4 


IO 


8 




16 


10 


l8 


6.12 


53 to 80 


648 to 979 


814 


48,837 


1,172,092 


3 


4 


IO 


8 




18 


10 


l8 


6 12 


53 to 80 


648 to 979 


814 


48,837 


1,172,092 


3V2 


5 


10 


8 




14 


12 


18 


8.80 


53 to 80 


933 to 1408 


1170 


70,200 


1,684,800 


3 


4 


12 


10 




16 


12 


18 


8.80 


53 to 80 


933 to 1408 


1170 


70,200 


1,684,800 


3 


4 


12 


10 




l8 


12 


l8 


8.80 


53 to 80 


933 to 1408 


1170 


70,200 


1,684,800 


3 l A 


5 


12 


10 




20 


12 


18 


8.80 


53 to 80 


933 to 1408 


1170 


70,200 


1,684,800 


3% 


5 


12 


10 




l6 


14 


18 


12.00 


53 to 80 


1272 to 1920 


i59 6 


95,760 


2,298,240 


3 


4 


12 


10 




18 


14 


l8 


12.00 


53 to 80 


1272 to 1920 


1596 


95,76o 


2,298,240 


3Y2 


5 


12 


10 




20 


14 


l8 


12.00 


53 to 80 


1272 to 1920 


1596 


95,76o 


2,298,240 


3V* 


5 


12 


10 




22 


14 


18 


12.00 


53 to 80 


1272 to 1920 


1596 


95,76o 


2,298,240 


4 


6 


12 


10 




24 


14 


l8 


12.00 


53 to 80 


1272 to 1920 


1596 


95,76o 


2,298,240 


4 


6 


12 


10 




18 


16 


l8 


i5- 6 7 


53 to 80 


1660 to 2506 


2084 


125,040 


3,000,960 


3A 


5 


14 


12 




20 


16 


18 


15-67 


53 to 80 


1660 to 2506 


2084 


125,040 


3,000,960 


3A 


5 


14 


12 




22 


16 


18 


15-67 


53 to 80 


1660 to 2506 


2084 


125,040 


3,000,960 


4 


6 


14 


12 




24 


16 


18 


15.67 


53 to 80 


1660 to 2506 


2084 


125,040 


3,000,960 


4 


6 


14 


12 




26 


16 


l8 


15.67 


53 to 80 


1660 to 2506 


2084 


125,040 


3,000,960 


5 


7 


14 


12 




20 


16 


24 


20.88 


40 to 60 


1670 to 2506 


2088 


125,280 


3,006,720 


3% 


5 


14 


12 




22 


16 


24 


20.88 


40 to 60 


1670 to 2506 


2088 


125,280 


3,006,720 


4 


6 


14 


12 




24 


16 


24 


20.88 


40 to 60 


1670 to 2506 


2088 


125,280 


3,006,720 


4 


6 


14 


12 




26 


16 


24 


20.88 


40 to 60 


1670 to 2506 


2088 


125,280 


3,006,720 


5 


7 


14 


12 




28 


16 


24 


20.88 


40 to 60 


1670 to 2506 


2088 


125,280 


3,006,720 


5 


7 


14 


12 




24 


18 


24 


26.44 


40 to 60 


2115 to 3173 


2644 


158,640 


3,807,360 


4 


6 


16 


H 




26 


18 


24 


26.44 


40 to 60 


2115 to 3173 


2644 


158,640 


3,807,360 


5 


7 


l6 


14 




28 


18 


24 


26.44 


40 to 60 


2115 to 3173 


2644 


158,640 


3,807,360 


5 


7 


l6 


14 




30 


18 


24 


26.44 


40 to 60 


2115 to 3173 


2644 


158,640 


3,807,360 


6 


8 


x6 


14 


1 



Note. — In a duplex pump the number of gallons delivered per minute is found by multiplying the displace- 
ment of one plunger by twice the number of strokes. 

An extra charge will be made for bed-plates. 

Sizes are designated by giving the diameter of steam-cylinders, the diameter of water-plungers, and the length 
of stroke ; thus, 12 x 10 x 18 for the first pump in the table, and similarly for any other size. 

4®=- The above pumps are designed for any service in which the water-pressure does not exceed 150 pounds 
per square inch. 



26 



DUPLEX STEAM PUMPS. 



DUPLEX PUMPS 18 AND 24 INCHES STROKE. 

These pumps can be fitted with compound steam-ends, as illustrated on pages 54 and 56. 

For list of sizes, see pages 55 and 57. 




Size, 20 x 16 x 24, mounted on bed- plate. 



BARR PUMPING ENGINE COMPANY. 



27 



DUPLEX PUMPS 18 AND 24 INCHES STROKE. 

Tha preceding tables include duplex pumps of 5 to 12 inches stroke, and include almost 
every size needed in ordinary service, but many establishments require a much larger capacity 
than is tabulated in the foregoing pages, so that a selection of longer-stroke pumps is given 
below. In addition to these sizes we are prepared to build duplex pumps specially designed 
to meet any requirement. 



CO 

>-. 
CO 
13 

.9 

"?> 

a 
3 

CO 
CO 

t-t 



3 
CO 

a 

eg 


& 
a 
_=* 

1 
>-. 

<x> 

as 

Es 



a 


«o 
M 


4-1 



>-3 


Displace.nent in Gallons for 
One Stroke of One Plunger. 


Ordinary Strokes per Minute 
of One Plunger. 


Gallons Delivered by Both 
Plungers at Stated Number 
of Strokes per Minute. 


Gallons Delivered by Both 
Plungers at a Mean of 
the Ordinary Strokes per 
Minute. 


Diameter of Pipes 
in Inches. 

(Subject to Change.) 


PRICE. 


Per 

Minute. 


Per 
Hour. 


Per 

24 Hours. 


a 

CD 

co 
3 


GO 

cs 
eg 

-a 

X 

4 





CO 

12 


eo 
faD 

<-. 

eg 

-a 

S 
10 


14 


12 


18 


8.80 


53 to 80 


933 to 1408 


1170 


70,200 


1,684,800 




16 


12 


18 


8.80 


53 to 80 


933 to 1408 


1 1 70 


70,200 


1,684,800 


3 


4 


12 


10 




18 


12 


18 


8.80 


53 to 80 


933 to 1408 


1 1 70 


70,200 


1,684,800 


3^ 


5 


12 


10 




20 


12 


18 


8.80 


53 to 80 


933 to 1408 


1 1 70 


70,200 


1,684,800 


3% 


5 


12 


10 




16 


!4 


18 


12.00 


53 to 80 


1272 to 1920 


1596 


95,760 


2,298,240 


3 


4 


12 


10 




18 


14 


18 


12.00 


53 to 80 


1272 to 1920 


1596 


95,76o 


2,298,240 


3^ 


5 


12 


10 




20 


14 


18 


12.00 


53 to 80 


1272 to 1920 


1596 


95,76o 


2,298,240 


3^ 


5 


12 


10 




22 


14 


18 


12.00 


53 to 80 


1272 to 1920 


1596 


95.76o 


2,298,240 


4 


6 


12 


10 




24 


14 


18 


12.00 


53 to 80 


1272 to 1920 


1596 


95,76o 


2,298,240 


4 


6 


12 


10 




18 


16 


18 


1567 


53 to 80 


1660 to 2506 


2084 


125,040 


3,000,960 


3^2 


5 


14 


12 




20 


l6 


18 


15-67 


53 to 80 


1660 to 2506 


2084 


125,040 


3,000,960 


3^ 


5 


14 


12 




22 


l6 


18 


15-67 


53 to 80 


1660 to 2506 


2084 


125,040 


3,000,960 


4 


6 


14 


12 




24 


l6 


18 


15.67 


53 to 80 


1660 to 2506 


2084 


125,040 


3,000,960 


4 


6 


14 


12 




26 


l6 


18 


15-67 


53 to 80 


1660 to 2506 


2084 


125,040 


3,000,960 


5 


7 


14 


12 




20 


16 


24 


20.88 


40 to 60 


1670 to 2506 


2088 


125,280 


3,006,720 


3Y2 


5 


14 


12 




22 


l6 


24 


20.88 


40 to 60 


1670 to 2506 


2088 


125,280 


3,006,720 


4 


6 


14 


12 




24 


l6 


24 


20.88 


40 to 60 


1670 to 2506 


2088 


125,280 


3,006,720 


4 


6 


14 


12 




26 


16 


24 


20.88 


40 to 60 


1670 to 2506 


2088 


125,280 


3,006,720 


5 


7 


14 


12 




28 


l6 


24 


20.88 


40 to 60 


1670 to 2506 


2088 


125,280 


3,006,720 


5 


7 


14 


12 




24 


18 


24 


26.44 


40 to 60 


2115 to 3173 


2644 


158,640 


3,807,360 


4 


6 


16 


14 




26 


18 


24 


26.44 


40 to 60 


2115 to 3173 


2644 


158,640 


3,807,360 


5 


7 


16 


14 




28 


18 


24 


26.44 


40 to 60 


2115 to 3173 


2644 


158,640 


3,807,360 


5 


7 ' 


16 


14 




3° 


18 


24 


26.44 


40 to 60 


2115 to 3173 


2644 


158,640 3,807,360 


6 


8 


16 


14 




24 


20 


24 


32.64 


40 to 60 


2611 to 3917 


3264 


195,840 


4,700,160 


4 


6 


.8 


l6 




26 


20 


24 


32.64 


40 to 60 


2611 to 3917 


3264 


195,840 


4,700,160 


5 


7 


18 


l6 




28 


20 


24 


32.64 


40 to 60 


2611 to 3917 


3264 


195,340 


4,700,160 


5 


7 


18 


l6 




3 2 


20 


24 


32 64 


40 to 60 


2611 to 3917 


3264 


195,840 


4,700,160 


6 


8 


18 


l6 




36 


20 


24 


32.64 


40 to 60 


261 1 to 3917 


3264 


195,840 


4,700,160 


8 


10 


18 


16 




26 


22 


24 


39-48 


40 to 60 


3158 to 4737 


3948 


236,880 


5,685,120 


5 


7 


20 


[8 




28 


22 


24 


39 48 


40 to 60 


3158 to 4737 


3948 


236,880 


5,685,120 


5 


7 


20 


iS 




3 2 


22 


24 


39-48 


40 to 60 


3158 to 4737 


3948 


236,880 


5,685,120 


6 


8 


20 


18 




36 


22 


24 


39.48 


40 to 60 


3158 to 4737 


3948 


236,880 


5,685,120 


8 


10 


20 


18 





Note. — In a duplex pump the number of gallons delivered per minute is found by multiplying the displace- 
ment of one plunger by twice the number of strokes. 

An extra charge will be made for bed-plates. 

Sizes are designated by giving the diameter of steam-cylinders, the diameter of water-plungers, and the length 
of stroke; thus, 14 x 12 x 18 for the first pump in the table, and similarly for any other size. 



28 



DUPLEX STEAM PUMPS. 




PARR PUMPING ENGINE COMPANY. 29 



ERECTING AND PIPING A PUMP. 

A general arrangement for the proper piping of a pump is shown on 
the opposite page, subject, of course, to such modifications as are neces- 
sary to adapt it to any particular location. 

The pump is shown on a foundation ; we recommend it as being 
more durable than placing it on a wooden floor, as the latter is liable to 
rot and may, in time, bring an undue strain upon the pipes, and thus 
tend directly to leaky joints. The water-end only requires to be bolted. 
Foundation drawings will be sent in advance of the shipment of a pump, 
so that the foundation may be in readiness when the pump arrives. 
Hard-burned brick, laid in cement-mortar, makes the best foundation. 

The suction-pipe should be as short and direct as possible, and 
never less in diameter than the size given in the tables, increasing it for 
long lengths. A foot-valve should be used, and if a strainer is not 
attached to it there should be a strainer-box built around it to keep out 
floating matter, fish, etc. The check-valve should bolt directly against 
the flange of the delivery-elbow. 

A charging-pipe should lead from the pressure-side of the check- 
valve into the suction-pipe. By opening the valve shown in the charging- 
pipe, the water from the reservoir or tank will flow into and fill the 
suction-pipe and the pump, thus expelling all the air. 

A relief-valve and pipe is shown immediately back of the check- 
valve. This valve should be opened when filling the suction-pipe and 
pump with water, in order to allow the air to escape. The relief-pipe 
should lead to a drain or any place where the overflow would not cause 
inconvenience. 

A vacuum-chamber is shown in dotted lines, together with a tee in 
the suction-pipe. This is not always necessary, but when it is it should 
be placed near the pump. If the suction-pipe goes into a deep well, and 
the distance from the well to the pump is short, the delivery-elbow may 
be changed to a tee, and the vacuum-chamber placed directly over 
the high lift. 

The steam-pipe should be so arranged that the water of condensa- 
tion, when the pump is not running, will drain back into the boiler. The 
exhaust may be led to any convenient point for escape into the atmos- 
phere, or it may be used in steam-coils for heating. Whenever desired, it 
may be condensed by the apparatus illustrated on page 62. 

Every pump is tested by us under steam before shipment, and the 
design, materials, and workmanship fully guaranteed. 



30 



DUPLEX STEAM PUMPS. 




DUPLEX BRINE-PUM PS. 

These pumps are designed for use in connection with ice-making or cooling machinery. 
We can furnish either plunger or piston water-ends as may be preferred. When piston pumps 
are ordered the water-cylinders are always brass lined ; the piston-rods, glands, valve-seats, 
and guards are made of hard brass to resist corrosive action. Brass pistons are arranged for 
the use of Tuck's or other similar packing. 



w 

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o 

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1-5 

5 


Displacement in Gallons for 
One Stroke of One Piston. 


Ordinary Strokes per Minute 
of One P^ton. 


Gallons Delivered by Both 
Pistons at Stated Number 
of Strokes per Minute. 


Gallons Delivered by Both 
Pistons at a Mean of 
the Ordinary Strokes 
per Minute. 


Diameter of Pipes 
in Inches. 


PRICE. 


Per 

Minute. 


Per Hour. 


a 


1 

-a 
I 


a 



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:=! 
2 


CD 

tie 
u. 
cd 

-a 

CO 

s 


4 


3 


• 15 


100 to 200 


30 to 60 


45 


2,700 




5 


3% 


6 


.21 


100 to 175 


42 to 74 


58 


3»48o 


1 


*V* 


2 


x# 




5 


4 


6 


•33 


100 to 175 


66 to 116 


9 1 


5,460 


1 


iK 


3 


2 




6 


4 


8 


•43 


100 to 150 


86 to 130 


108 


6,480 


1 


*X 


3 


2 




6 


5 


8 


.68 


100 to 150 


136 to 204 


170 


10,200 


1 


*% 


4 


2^ 




8 


6 


IO 


1.22 


75 to 125 


183 to 305 


244 


14,640 


1/2 


2 


4 


3 




9 


7 


12 


2.00 


75 to 125 


300 to 500 


400 


24,000 


2 


2/2 


6 


5 




9 


8 


12 


2.61 


75 to 125 


391 to 652 


522 


31,320 


2 


»* 


6 


5 




IO 


IO 


12 


4.08 


75 to 125 


612 to 1020 


816 


48,960 


2 


*% 


8 


7 




12 


12 


12 


5-87 


75 to 125 


880 to 1467 


1174 


70,440 


*X 


3 


10 


8 





Other sizes and combinations made to order. 

iVtf/c?. — In a duplex pump the number of gallons delivered per minute is found by multiplying the displace- 
ment of one piston by twice the number of strokes. 

An extra charge will be made for bed plates. 

Sizes are designated by giving the diameter of steam-cylinders, the diameter of water-pistons, and the length 
of stroke ; thus, 4 x 3 x 5 for the first pump in the table, and similarly for any other size. 



BARR PUMPING ENGINE COMPANY. 



DUPLEX BREWERY-PUMPS. 




Specially adapted for pumping hot or cold beer, mash, etc. These pumps are all of the 
packed-piston type, have brass piston-rods, brass-lined water-cylinders, pistons adapted for 
Tuck's or other similar packing. The valves are carefully selected for the work required of 
them. The water-ways and valve-areas are unusually large. In making comparisons it should 
be borne in mind that our duplex pumps have two steam-cylinders and two double-acting 
pistons, therefore double the capacity of a single pump of the same dimensions. 



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Gallons Delivered by Both 
Pistons at Stated Number 
of Strokes per Minute. 


Gallons Delivered by Both 
Pistons at a Mean of 
the Ordinary Strokes 
per Minute. 


Diameter of Pipes 
in Inches. 


PRICE. 


Per 

Minute. 


Per lour. 


a 

00 

I 
I 
I 

1 

2 
2 
2 
2^ 


1 

X 

I 

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2 

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6 
6 
8 
10 


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5 
5 
7 
8 


4 
5 
5 
6 
6 
8 
9 
9 

IO 
12 


3 

3K 

4 

4 

5 

6 

7 

8 

IO 
12 


5 
6 
6 
8 
8 

IO 
12 
12 
12 
12 


■15 

.21 

•33 
•43 
.68 

1.22 
2.00 
2.6l 
4.08 

5-87 


100 to 200 

100 to 175 

100 to 175 

100 to 150 

100 to 150 

75 to 125 

75 to 125 

75 to 125 

75 to 125 

75 to 125 


30 to 60 

42 to 74 

66 to 116 

86 to 130 

136 to 204 

183 to 305 

300 to 500 

391 to 652 

612 to 1020 

880 to 1467 


45 
58 

9 1 
108 
170 
244 
400 
522 
816 
1174 


2,700 

3,480 

5,460 

6,480 

10,200 

14,640 

24,000 

31,320 

48,960 

70,440 





Other sizes and combinations made to order. 

Note. — In a duplex pump the number of gallons delivered per minute is found by multiplying the displace- 
ment of one piston by twice the number of strokes. 

An extra charge will be made for bed plates. 

Sizes are designated by giving the diameter of steam-cylinders, the diameter of water-pistons, and the length 
of stroke ; thus, 4 x 3 x 5 for the first pump in the table, and similarly for any other size. 



32 



DUPLEX STEAM PUMPS. 



DUPLEX TANNERY-PUMPS. 




Adapted equally well for either cold or hot liquors. The water-ends are of the piston pattern, brass lined, 
with brass piston-rods. The pistons are adapted for Tuck's or similar packing. Valves selected for the service 
required. The valve-openings are large to prevent clogging with particles of ground bark. In making com- 
parisons it should be borne in mind that our duplex pumps have two steam-cylinders and two double-acting 
pistons, therefore double the capacity of a single pump of the same dimensions. 

>§®=" For concentrated liquors or extracts we recommend water-ends constructed wholly of brass. Prices 
furnished upon application. 



w 
s-. 


S-i 

o 




S3 


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Both 
limber 

t3. 


Gallons Delivered by Both 
Pistons at a Mean of 


Diameter of Pipes 




l 

a 

03 

s. 

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£ - fe 
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CO O 
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the Ordinary Strokes 
per Minute. 


in Inches. 


o5 
ho 

f-c 
o3 

-a 
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PRICE. 


Per 

Minute. 


Per lour. 


S 

03 
CO 


03 

X 

1 


sa 



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CO 

2 


4 


3 


5 


• i5 


100 to 200 


30 to 60 


45 


2,700 


x% 




4 


4 


5 


.27 


100 to 200 


54 to 108 


81 


4,860 


H 


1 


2 


1% 




5 


4 


6 


• 33 


100 to 175 


66 to 115 


9 1 


5,460 


I 


*Va 


3 


2 




5 


5 


6 


.51 


100 to 175 


102 to 178 


140 


8,400 


I 


itf 


3 


2 




6 


5 


8 


.68 


100 to 150 


136 to 204 


170 


10,200 


I 


1% 


4 


2^ 




6 


6 


8 


.98 


100 to 150 


196 to 294 


245 


14,700 


I 


*% 


4 


2% 




8 


6 


IO 


1.22 


75 to 125 


183 to 305 


244 


14,640 


Ifc 


2 


4 


3 




8 


7 


IO 


1.66 


75 to 125 


249 to 415 


33 2 


19,920 


1 3* 


2 


5 


4 




7 


7 


12 


2.00 


75 to 125 


300 to 500 


400 


24,000 


I** 


2 


6 


5 




8 


7 


12 


2.00 


75 to 125 


300 to 500 


400 


24,000 


1/2 


2 


6 


5 




8 


8 


12 


2.61 


75 to 125 


391 to 652 


522 


S 1 ^ 20 


Ifc 


2 


6 


5 




IO 


8 


12 


2.61 


75 to 125 


391 to 652 


522 


S 1 ^ 20 


2 


2 ^ 


6 


5 




IO 


IO 


12 


4.08 


75 to 125 


612 to 1020 


816 


48,960 


2 


2 K 


8 


7 




12 


IO 


12 


4.08 


75 to 125 


612 to 1020 


816 


48,960 


2 ^ 


3 


8 


7 





Note. — In a duplex pump the number of gallons delivered per minute is found by multiplying the displace- 
ment of one piston by twice the number of strokes. 

An extra charge will be made for bed-plates. 

Sizes are designated by giving the diameter of steam-cylinders, the diameter of water-cylinders, and the length 
of stroke ; thus, 4 x 3 x 5 for the first pump in the table, and similarly for any other size. 



BARR PUMPING ENGINE COMPANY. 33 



DUPLEX FIRE-PUMPS . 

The selection of a fire-pump should be based upon no other con- 
sideration than that of merit. The several varieties of steam-pumps 
which have found popular favor in a variety of uses, have also competed 
sharply for favor in the matter of fire protection. The process of intelli- 
gent discrimination and selection has had the effect to bring out promi- 
nently the peculiar excellencies of the duplex steam-pump for this trying 
and important service, so that the superiority of the duplex valve-motion 
is now so fully recognized that, with scarcely any exception, the most 
careful and intelligent underwriters advocate, if they do not insist upon, 
this design of pump in all cases where they carry important fire risks. 



LOCATION OF WATER-VALVES. 

In examining the engravings it will be observed that the discharge- 
and suction-valves are located above the plungers ; the pump can never, 
therefore, lose its charge. This distinctive feature of our duplex fire- 
pumps is of the highest importance, securing prompt action in emer- 
gency, and avoiding the danger of breakage that is incurred with pumps 
running dry. 



STEAM-VALVE GEAR. 

It is important that a fire-pump start promptly the moment the 
steam is turned on. This, in turn, makes it imperative that the valve- 
movement employed for the steam-end should be of the utmost simplic- 
ity, and have no concealed parts liable to derangement. There is noth- 
ing in our valve-gear which is not clearly shown on pages 12 and 36. It 
will be observed that the mechanism is of the simplest character. There 
are no steam-thrown valves, no springs, cams, supplemental pistons, con- 
cealed or intricate passages, or anything else that is liable to derange- 
ment or which, if out of order, cannot be adjusted without taking the 
pump apart. In fire-pumps of our construction the whole of the valve- 
gear is outside of the steam-end, in plain sight, and so simple in its 
detail that derangement is impossible. 

3 



34 



DUPLEX STEAM PUMPS. 



HIGH PISTON SPEED. 

A fire-pump must be able to attain a high piston speed, and main- 
tain it without violent shock or concussion. It is important, therefore, 
that it be properly proportioned for the work, and that it have ample 
strength for this, the most exacting of any service. A common defect 
in trade pumps is that the valve-areas and water-passages are too small, 
the effect of which is, in practice, to cause excessive frictional resistance 
when running at moderate or high speeds ; the steam-end, having scarcely 
any frictional resistance, drives the water-plungers faster than the water 
can flow into the pump ; the result is a partially-filled water-cylinder and 
a corresponding shock when the plunger strikes the water. 

CONTINUOUS STREAMS. 

A continuous and perfectly uniform stream of water at a high 
velocity is the most effective in the event of a fire. No fire-pump yet 
produced surpasses the duplex in this respect. The reason for this is 
easily understood, and has reference mainly to the distribution of steam 
in the two steam-cylinders. The first effect upon the admission of steam 
is to push the steam-piston forward in the cylinder ; the piston-rod being 
common to the steam-piston and the water-plunger, the latter moves 
forward in its stroke in unison with the steam-piston, at the same time 
expelling any water in front of it, and forming a vacuum behind it, which 
causes a flow of water into the pump-chamber from the central suction- 
chamber shown below the suction-valves (see illustrations on pages 12 
and 14). To each piston-rod is attached a cross-head, which operates, 
through the medium of a lever and rock-shaft, the valve-rods on the 
opposite sides of the pump, so that, when one piston and plunger 
reaches the end of the stroke, the steam-valve on the opposite side 
has been reversed, and, in consequence, the operation of piston and 
plunger just described is also reversed. A certain amount of lost motion 
is given the valve-stem, which permits the piston and plunger on the 
one side to come to a state of rest before the other side reverses it. This 
momentary pause in the steam movement constitutes one of the valu- 
able features in the duplex movement, because it permits the gentle seat- 
ing of the suction- and delivery- valves, and has much to do with smooth 
running. This movement must not be confounded with the so-called 
duplex pump fitted with crank and fly-wheel, the cranks being set at 
right-angles ; it is not the same thing at all, and there are no points in 
common between them. The inferiority of the latter as compared with 



BARR PUMPING ENGINE COMPANY. 35 



the former will be made apparent at a glance when the two movements 
are placed in comparison. 

VACUUM-CHAMBERS. 

It sometimes happens that the location of a fire-pump requires a 
suction-pipe of extreme length, and not infrequently several sharp bends 
are included in the pipe. In such a case a vacuum-chamber is found to 
add to the smoothness of the running, probably by preventing a water- 
hammer in the suction-pipe. 

Whenever it is thought desirable to add a vacuum-chamber it 
should be placed near the pump. Its capacity will depend somewhat on 
the conditions attending the location of the fire-pump, which, if made 
known to us, we shall take pleasure in advising with reference to size 
and location of vacuum-chamber to secure the best results. 

SIZE OF SUCTION-PIPE. 

The diameters given in the table on page 37 for suction-pipes for fire- 
pumps are ample for pumping from a cistern or well located alongside of 
near the pump. If the suction-pipe be more than 50 feet long the size 
should be increased one inch in diameter, if more than 200 feet long an 
increase of two inches in diameter is recommended, and if over 500 feet 
long not less than three inches increase in diameter. 

As there is nothing but gravity to compel the flow, it is possible 
to have more frictional resistance in the suction-pipe than can be quickly 
overcome by atmospheric pressure, and, in consequence, the pump is 
likely to "run away" from the water, and will have to be slowed-down 
to much less than its rated capacity. 

A foot-valve should always be attached to the bottom of the suction- 
pipe, and, if the water-supply be had from a running stream, a strainer 
should also be attached to keep out floating matter, such as leaves, sticks, 
fish, etc. 

SIZE OF DELIVERY-PIPE. 

The size of delivery-openings, as given in the table for duplex fire- 
pumps, is ample for any ordinary requirement, and need not be enlarged 
for long lines or for heavy pressures ; but for special or unusual service, 
we can make a larger delivery-elbow, of a diameter to meet the special 
needs of a customer. A delivery-tee can be attached to the force- 
chamber, having two or more openings, as illustrated on page 40. 



36 



DUPLEX STEAM PUMPS. 



DUPLEX FIRE-PUMP, 




Size G 3, 18 x 10 x 12. 



BARR PUMPING ENGINE COMPANY. 



37 



DUPLEX FIRE-PUMPS. 

The engraving on the opposite page represents our standard design for duplex fire-pump, 
fitted with plunger and ring. These pumps are all double-acting and fitted with rubber valves, 
brass seats, guards, and springs suitable for pumping cold water. The movement of each steam- 
valve is controlled by the piston of the opposite cylinder, transmitted across the framing of the 
pump to each valve-rod, respectively; this movement is always certain in its action. Its entire 
freedom from supplemental valves, ports, and other complications makes it the most desirable 
valve-gear known, and as the valve of one cylinder is actuated and controlled by the piston 
of the opposite cylinder, no dead points can occur in the stroke, consequently the pump can 
be started at any time with absolute certainty. 



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Gallons Delivered by Both 
Plungers at Stated Num- 
ber of Strokes per 
Minute.* 


Diameter of Pipes 
in Inches. 


PRICE. 


80 
Strokes 

per 
Minute. 


100 
Strokes 

per 
Minute, 


120 

Strokes 

per 
Minute. 


s 

CO 


EQ 

£3 

eg 

M 


S3 

O 

3 

CO 


CO 

be 
s- 
ni 


A 


3 


3 to I 


8 


5 


10 


0.85 


136 


170 


204 


1% 


2 


4 


4 




A 


4 


4 to i 


8 


4 


10 


054 


86 


108 


129 


i# 


2 


4 


4 




A 


5 


5 to i 


8 


3^8 


10 


0.44 


70 


88 


105 


l# 


2 


4 


4 




B 


3 


3 to i 


9 


5 1 / 


12 


1. 12 


179 


224 


268 


2 


2^2 


5 


4 




B 


4 


4 to i 


9 


4 l A 


12 


.82 


I3 1 


164 


196 


2 


2>2 


5 


4 




B 


5 


5 to i 


9 


4 


12 


.65 


104 


130 


156 


2 


2% 


5 


4 




C 


3 


3 to i 


IO 


6 


12 


i-47 


235 


294 


342 


2 


2% 


5 


5 




C 


4 


4 to i 


IO 


5 


12 


1.02 


163 


204 


244 


2 


2% 


5 


5 




C 


5 


5 to i 


IO 


4^ 


12 


.82 


I3 1 


164 


196 


2 


2^ 


5 


5 




D 


3 


3 to i 


12 


7 


12 


2.00 


320 


400 


480 


2^ 


3 


6 


5 




D 


4 


4 to i 


12 


6 


12 


i-47 


235 


294 


342 


•2V1 


3 


6 


5 




D 


5 


5 to i 


12 


5 1 / 


12 


1. 12 


179 


224 


268 


2^ 


3 


6 


5 




E 


3 


3 to i 


14 


8 


12 


2.61 


4i7 


522 


626 


3 


4 


7 


6 




E 


4 


4 to i 


14 


7 


12 


2.00 


320 


400 


480 


3 


4 


6 


6 




E 


5 


5 to i 


14 


6 


12 


i-47 


235 


294 


342 


3 


4 


6 


6 




F 


3 


3 to i 


16 


9 


12 


3-3o 


528 


660 


792 


3 


4 


8 


7 




F 


4 


4 to i 


16 


8 


12 


2.61 


4i7 


522 


626 


3 


4 


6 


6 




F 


5 


5 to i 


l6 


7 


12 


2.00 


320 


400 


480 


3 


4 


6 


6 




G 


3 


3 to i 


l8 


10 


12 


4.08 


652 


816 


979 


3/a 


5 


10 


8 


1 


G 


4 


4 to i 


18 


9 


12 


3-3o 


528 


660 


792 


3% 


5 


8 


7 




G 


5 


5 to i 


18 


8 


12 


2.61 


4 X 7 


522 


626 


3 l A 


5 


8 


7 




H 


3 


3 to i 


20 


12 


12 


5-87 


939 


1174 


1408 


3^ 


5 


10 


8 




H 


4 


4 to i 


20 


10 


12 


4.08 


652 


816 


979 


3^ 


5 


IO 


8 




H 


5 


5 to i 


20 


9 


12 ■ 


3-3° 


528 


660 


792 


3 l A 


5 


IO 


8 





* When selecting a fire-pump the size should be based on 100 strokes per minute ; the additional capacity 
(as shown in the table) should be held in reserve. 

Note. — In a duplex pump the number of gallons delivered per minute is found by multiplying the displace- 
ment of one plunger by twice the number of strokes. 

An extra charge will be made for bed-plates. Prices quoted on application. 

Sizes are usually designated by giving the diameter of steam-cylinders, the diameter of water-plungers, and 
the length of stroke ; thus, 8 x 5 x 10 for the first pump in the table, or, the symbol A 3 may be used, which means 
an A fire-pump having a ratio of steam to water of 3 to 1, and similarly for any other size. 

The above pumps can be fitted with brass plungers, rods, and stuffing-box glands for salt water at a slight 
advance on the above prices. 

Special delivery fittings, including any number and arrangement of hose connections, valves, or other outlets 
will be supplied at cost, to suit the needs of a customer. See page 40. 



38 



DUPLEX STEAM PUMPS. 



FIRE-STREAMS WITH U-INCH SMOOTH NOZZLE. 



(From Experiments of J. R. Freeman, 1888.) 



§ 2 

o eg 

3 ^ 

CO 



25 
30 
35 
40 

45 
50 
55 
60 

65 
70 

75 
80 

85 
90 

95 
100 



Maximum Limit 

Good 

Effective Fire-Stream, 

with 

Moderate Wind. 



Extreme 
Height. 



FEET. 
44 
52 

59 
65 

70 

75 
80 

83 



90 
92 

94 
96 
98 
99 



Extreme 
Horizontal 
Distance. 



FEET. 

44 
50 
54 
59 

63 
66 
69 
72 

75 
77 
79 



83 
85 

87 



8 3 



252 
266 

279 
291 

3°3 
3 J 4 
325 
33 6 



356 

366 
376 



POUNDS PRESSURE AT HYDRANT OR FIRE-PUMP 

While stream is flowing, to maintain pressure at base of play-pipe, as per 

first column, through various lengths of 2 J^ -inch ordinary 

Best Quality Rubber-Lined Hose. 



50 Feet. 



POUNDS. 
3 1 

206 37 

222 43 

238 50 



56 
62 

68 
74 

81 
87 
93 
99 

106 
112 
118 
124 



100 Feet. 


200 Feet. 


300 Feet. 


POUNDS. 


POUNDS. 


POUNDS. 


35 


43 


51 


42 


52 


61 


49 


60 


7! 


56 


69 


81 


63 


77 


92 


70 


86 


102 


77 


95 


112 


84 


103 


122 


9 1 


112 


1 
132 j 


98 


120 


143 


105 


129 


153 


112 


138 


163 


119 


146 


! 
173 


126 


155 


183 


133 


163 


194 


140 


172 


204 



I 
400 Feet. ! 500 Feet 



POUNDS. 

59 
71 
82 

94 

106 

118 
130 
141 

153 
165 
177 



200 
212 
224 
236 



POUNDS. 

: 67 

80 

94 
107 

120 
134 
J 47 
160 

174 

187 
201 
214 

227 
241 
254 



fg^f The above is the pressure indicated by gauge at hydrant-head, or fire-pump delivery- 
elbow if hose is connected there, measured while the stream is flowing. The corresponding 
static reservoir-pressure, or fire-pump pressure, must be greater than the hydrant-pressure by 
an amount equal to the friction loss between the hydrant-head and pump or reservoir. 

Eighty pounds per square inch is now considered the best hydrant-pressure for general 
use; 100 pounds per square inch should never be exceeded, except occasionally for very high 
buildings, or lengths of hose exceeding 300 feet. 

Note. — By a good effective fire-stream is meant that, for a given pressure, the stream 
would enter through a window and barely strike the ceiling with force to scatter well, and 
which, at limit named, had not lost continuity of stream by dividing into a shower of spray, 
and which, at this limit, appeared to shoot nine-tenths of the whole body of water inside 
of a 15-inch circle, and three-fourths of it within a 10-inch circle, as nearly as could be judged 
by the eye. 



BARR PUMPING ENGINE COMPANY. 



39 



DI SCHARGE OF NOZZLES ATTACHED TO 100 FEET 

OF 2*-INCH HOSE. 



(From Experiments of J. R. Freeman, 1888.) 





1^-Inch Smooth 


ltf- 


[nch Smooth 


lJ/8-Inch Smooth 


1-Inch Smooth 


%-Inch Smooth 


%-Inch Smooth 


g 



a 


Nozzle. 




Nozzle. 


Nozzle. 




Nozzle. 




Nozzle. 




Nozzle. 


Gallons per Minute. 


Gallons per Minute. 


Gallons per Minute. 


Gallons per Minute. 


Gallons per Minute. 


Gallons per Minute. 












49 


s 




<x> 


s 




CD 


<6 




OD 







CD 


s 


is a 




CO 



W 







CO 

O 

w 




fcd 












O 

w 




W 




O 

tq 







CO 



w 


w 


■ 00 t— 1 






-T3 






T3 






T3 






T3 






13 






-53 





















O? 




















5 | 




a 


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a 




a 


a 




s 


g 




a 


g 

a 




a 


g 

a 




ji 


g 

a 


^ & 




c! 


13 . 




a 


Is 




s=a 


s-. 





S3 


CD 




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;=! 


sH. 


ssure Indicated 
Pounds per ! 



H 

s3 


3ji 
*> 

<© i-h 


t Quality Rubb 
Inside Smooth, 



w 


3^a 

S3 * 
1 w 

,0 


-° J3 

5 a 
.at' 53 

O? S3 





w 


*> 

.5-3 

fe>£ 


ill 

£3 CO 
&J3 


CD 
CO 

O 

w 

S3 


C2 =3 

O 

'OPS 

CD ^* 

a co 

a ?2 


S3 ° 
^1 
,— . qd 

S3 CO 

C a 


CD 
O 

w 


3^ 

» § 

-gpc 

a^s 

>L S3 

CD *—* 


■go 

3 CO 

& S3 



w 

S3 


°| 

S. S3 
« 1 — 1 
,0 


<? a 

.t^ CD 

■3 2 

S3 CO 



«-. 

Oh 

1 



g 
i3 


Si 

Pi 




PQ 



g 
►3 


=3 

P5 




.S 


1 


CD 

PQ 


g 
a 


■3 


CO 

CD 

PQ 


g 

a 


=3 
Pt5 


CD 


CD 

a 

a 


^3 
=3 


CD 

P3 


c3 


•^ 


(H 




T3 


hi 


s* 


■73 


f-t 


Si 


•^3 


t- 


s- 


T3 


S-c 


S-. 


-53 


tH 


Sh 


04 


cd 


O 


cS 


od 





04 





O 


cs 


CD 





co 


CD 





CS 






CO 


g 




g 


g 




g 


g 


J-t 


g 


S3 


*Si 


g 


_g 




a 


g 




g 


-cs 

m 


3 


c2 





■3 

70 




Si 
O 

82 


"3 

62 


64 


■3 

Si 

7 1 


3 


CD 





"3 
44 


CD 
^3 


-3 

(H 

<=> 

47 


3 
1=3 


S3 


-3 




5- 


75 


79 


93 


72 


54 


55 


59 


45 


34 


34 


35 


10 


107 


in 


131 


98 


I02 


Il6 


88 


9 1 


100 


76 


78 


83 


63 


63 


66 


48 


49 


50 


15 


131 


136 


160 


121 


125 


J 43 


108 


in 


123 


93 


95 


102 


76 


77 


81 


59 


60 


61 


20 


151 


157 


185 


*39 


144 


164 


125 


128 


142 


107 


no 


118 


88 


89 


94 


68 


69 


7 1 


25 


169 


176 


207 


155 


l6l 


184 


i39 


143 


158 


120 


122 


132 


99 


100 


105 


76 


77 


79 


30 


185 


192 


226 


170 


I76 


202 


152 


156 


173 


132 


134 


144 


108 


no 


"5 


84 


84 


87 


35 


200 


208 


245 


184 


I9O 


218 


165 


169 


188 


142 


i45 


156 


117 


119 


124 


90 


9i 


93 


40 


214 


232 


262 


197 


204 


233 


176 


181 


201 


152 


155 


167 


125 


127 


J 33 


97 


97 


100 


45 


226 


236 


278 


209 


2l6 


247 


187 


192 


213 


161 


165 


177 


132 


134 


141 


103 


103 106 


5o 


2 39 


249 


293 


220 


228 


260 


197 


202 


224 


170 


174 


186 


139 


142 


148 


108 


109 


112 


55 


251 


26l 


307 


231 


239 


273 


207 


212 


235 


178 


182 


195 


146 


148 


155 


"3 


114 


117 


60 


261 


2 73 


320 


241 


250 


285 


216 


222 


245 


186 


190 


204 


i53 


155 


162 


118 


119 


122 


65 


272 


284 


333 


251 


260 


296 


225 


231 


255 


194 


198 


213 


159 


161 


169 


123 


124 


127 


70 


282 


294 


346 


261 


2 70 


3°7 


233 


240 


265 


201 


205 


221 


165 


167 


176 


128 


129 


132 


75 


292 


304 


358 


270 


2 79 


3i9 


241 


248 


275 


208 


212 


228 


171 


173 


182 


132 


133 137 


80 


301 


3*4 


37° 


278 


288 


329 


249 


256 


284 


215 


219 


236 


177 


179 


188 


J 37 


138 142 


85 


3" 


324 


382 


287 


297 


339 


257 


264 


293 


222 


226 


243 


182 


185 


J 93 


141 


142 146 


90 


320 


333 


393 


295 


306 


349 


264 


272 


301 


228 


233 


250 


188 


190 


199 


145 


146 , 150 


95 


329 


342 


4°3 


303 


3H 


358 


272 


279 


309 


234 


239 


257 


192 


T 95 


204 


149 


150 154 


100 


337 


35i 


414 


3" 


322 


368 


279 


287 


3i7 


240 


245 


264 


197 


200 


210 


153 


i54 158 



There is no advantage in having fire-streams of more than 100 pounds pressure per 
square inch. The number of 2j^-inch hose-connections for supplying i^-inch nozzles or 
fire-streams will depend upon the size of the fire-pump, but it is not recommended that more 
than four such connections be attached to the larger sizes given in the table of fire-pumps 
on page 37 ; it is better to have a less number of good streams than a greater number lacking 
in both volume and velocity. 



4Q 



DUPLEX STEAM PUMPS. 



FIRE-PUMP DELIVERY-TEES. 

We can furnish delivery-tees having two, three, or four straight-way 
valves, with 2^-inch hose connections, as shown in the engraving below. 
This delivery-tee is located on top of the delivery-chamber of the fire- 
pump and below the air-chamber. The discharge will be of the same 
diameter as given in the table on page 37. 





In addition to the above, 
we can fit the regular delivery- 
elbow of a fire -pump with one 
or two gate-valves, as shown 
in the accompanying illustra- 
tion. The delivery-elbow is 
of the same pattern as that 
ordinarily furnished with our 
fire-pumps, the only difference 
being that the projections 
shown on each side are fitted 
with gate-valves suited for 
2^-inch hose. 

In the event that the de- 
signs shown on this page do 
not meet the requirements of 
a customer, we are prepared 
to make any other design to 
order. 



BARR PUMPING ENGINE COMPANY. 



41 



THE UNDERWRITER FIRE-PUMP. 

The Underwriter Pump is the name adopted by the Associated 
Factory Mutual Insurance Companies, to designate a Steam Fire-Pump 
built in accordance with specifications prepared by their engineer, and 
adopted at the monthly conference of the Associated Companies, June 
15, 1891. 

Fire-Pumps are expected to run at much higher speeds than pumps 
for boiler feeding or other regular water supply. Experience shows 
that, under ordinary circumstances, fire-pumps do not get any such care 
as a steam-engine or other machine on which the product of the factory 
depends. 

A fire-pump should be proof against disabling by rust after weeks 
of disuse ; it should be possible to instantly start a fire-pump and run it 
at full speed, even by a man who is excited and perhaps unskilful. 

Steam-Cylinders. The strength of steam-cylinders shall be such 
as to use steam of 100 pounds pressure, with ample thickness in the 
steam-cylinders and on the valve-face for reboring and refitting. 

The Steam-Ports are constructed exactly in accordance with the 
Underwriters' circular, and, in addition, a supplementary port leading 
from each end of each steam-cylinder into the exhaust port ; each one 
of these ports being fitted with a cushion-valve, more fully described 
below. The steam clearance space has been reduced to the smallest 
amount consistent with safety. 

Cushion- Valves will be provided, one valve at each end of each 
steam-cylinder. These valves can be adjusted whilst the pump is in 
operation, and each valve will be provided with a brass disc, properly 
lettered, so that the valve can be adjusted either to cushion or to length 
of stroke, as may be required. 

Stroke-Gauge. A gauge will be provided each side of the pump, 
securely attached to the tie-bars. A suitable pointer will be attached to 
the cross-head, so that the stroke of the pistons can be ascertained at 
any time the pump is in motion. 

A Steam-Pressure Gauge will be fitted to the steam-pipe inside 
of the throttle-valve ; it will be properly piped and supplied with cock 
and lever-handle. 



42 DUPLEX STEAM PUMPS. 

A Sight-Feed Lubricator will be furnished, including valves for 
shutting off the steam when not in use. 

Drip-Cocks, with lever-handles, will be provided each end of each 
steam-cylinder for drainage. 

The Water-End shall be of sufficient thickness to admit of closing; 
all valves on the water-outlet pipes, while the steam-valve is wide open, 
with a steam-pressure of 80 pounds, and each fire-pump will be so tested 
before shipment from our works. 

Plungers. The pumps are all of the inside plunger pattern, the 
plungers being made of a bronze composition of copper and tin, fitting 
into plunger-rings of the same material but of different proportions, each 
mixture to be such as shall insure the best wearing qualities. 

Brass Fitting. All fire-pumps made by us are brass fitted through- 
out, — that is to say, the plungers and plunger-rings will be made of hard 
bronze, composed entirely of new copper and tin, and not containing any 
zinc in its composition. The piston-rods will be made of manganese 
or Tobin bronze, guaranteed to be equal strength of open hearth steel. 
The stuffing-boxes in the water-end and steam-end will be provided with 
bronze bushings, so that no part of the rod shall at any time come in 
contact with iron surfaces. The valve-rods and stuffing-boxes will be 
similarly made and fitted. The glands will be made of bronze. 

Suction- Valves. The net areas of ports in suction-valves for each 
end of each plunger are to be, according to the Underwriters' circular, 
not less than 56 per cent, of the plunger area. All of the fire-pumps 
made by us have valve areas much larger than the above. We have 
adhered to the recommendation of the Underwriters' engineer ; to put in a 
larger number of small valves i?tstead of a few large valves. 

Delivery- Valves. The Underwriters' specification states that the 
force-valves need have but two-thirds the total port areas specified for 
the suction-valves. The delivery-valves in any of the fire-pumps de- 
signed by us have more than double the areas specified above. 

Location of Valves. The discharge and suction-valves in our fire- 
pumps are above the plungers ; the pump can never, therefore, lose its 
charge. This distinctive feature of our duplex pumps is of the highest 
value to the user, securing prompt action in emergency, and avoiding 
the danger of breakage that is incurred with pumps running dry. 

Construction of Valves. The valve-seats are screwed in; the 



BARR PUMPING ENGINE COMPANY. 43 

valve-stem or guard and the valve-seat are cast together in one piece. 
The valve is protected by a brass plate. The spring is of cylindrical 
form instead of conical, and thus brings a uniform tension upon its 
entire length ; it bears upon the brass plate at the bottom, and is held 
and guided by a brass nut at the top ; this nut is secured to the stem 
by a taper-thread and also by a split-pin. This construction is an abso- 
lute safeguard against the valve getting adrift in the water-end. 

Pressure-Gauges will be provided each pump, fitted with ^ -inch 
cock with lever-handle, and so piped that the water-pressure can be 
ascertained at a glance. 

Drip-Cocks, with lever-handles, will be provided each end of each 
water-cylinder for drainage. These cocks to be not less than ^-inch 
diameter of opening. A similar drain-cock will be provided for drawing 
off the water above the upper valve-deck. A ^-inch air-cock with 
lever-handle will be attached to the delivery-chamber. 

Capacity-Plate. Each fire-pump will be provided with an enam- 
elled plate, which will bear conspicuously a statement of the capacity of 
the pump. This plate will be secured to the air-chamber. 

A Safety- or Relief- Valve will be furnished and attached to the 
delivery side of the pump. This valve will be set at a working pressure 
of 100 pounds per square inch, and will be of a design or manufacture 
subject to the approval of the Associated Mutual Companies. Each 
valve to be provided with a hand-wheel, with proper lettering to indicate 
in which direction the hand-wheel is to be turned to either increase or 
decrease the pressure. The size of each relief-valve is given in the table 
of general dimensions. 

Vacuum- Chamber. Each pump will be fitted with a vacuum- 
chamber, permanently attached to the pump, and of the capacity given 
in the table. 

An Air-Chamber will be fitted to each delivery-chamber, and will 
be of the capacity given in the table. 

Priming-Pipes. Each pump will be fitted with a priming appara- 
tus, so that each end of each water-cylinder can be primed from any 
source of supply convenient to the pump. 

Hose-Connections. Each fire-pump will be fitted with 2^-inch 
straightway hose-valves, attached to the delivery-tee, between the de- 
livery-chamber and the air-chamber. 



44 



DUPLEX STEAM PUMPS. 



UNDERWRITER FIRE-PUMP. 




Size, 14 x 7% x 12. 



BARR PUMPING ENGINE COMPANY. 45 



FOUR SIZES OF UNDERWRITER PUMPS ARE 

SPECIFIED. 

No. 1. Capacity, 300 gallons per minute, for 1 fire stream. 
No. 2. " 500 " " " " 2 " 

No. 3. " 750 " " " " 3 " 

No. 4. " 1000 u " " " 4 " 

All fire-pumps to be adapted for 2^-inch hose-couplings. 
250 gallons per minute is the Underwriters' allowance for a good 
I ^-inches (smooth nozzle) fire-stream. 



No. 1 Fire-Pump is fitted with steam-cylinders 12 inches diameter, 
water-plungers, 6 inches diameter, all of 12 inches stroke. This water- 
end has a displacement of 1.47 gallons for one stroke of one plunger, 
so that 352 gallons displacement is had when making 60 revolutions 
per minute.* 

This pump is fitted for one line of 2^-inch hose. 

Too small for a fire-pump^ except as an auxiliary. 

Pipes will be as follows: steam, 2]/ 2 inches; exhaust, 3 inches; 
suction, 6 inches ; delivery, 5 inches. Price, $ 

No. 2 Fire-Pump is fitted with steam-cylinders 14 inches diameter, 
water-plungers, 7^ inches diameter, all of 12 inches stroke. The water- 
end has a displacement of 2.14 gallons for one stroke of one plunger, 
so that 599 gallons displacement is had when making 70 revolutions 
per minute.* 

This pump has the Underwriters' rating of 500 gallons per minute, 
and is fitted for two lines of 2^-inch hose. 

This is the ordinary size for small mills. 

Pipes will be as follows : steam, 3 inches ; exhaust, 4 inches ; 
suction, 8 inches ; delivery, 6 inches. Price, $ 

No. 3 Fire-Pump is fitted with steam-cylinders 16 inches diameter, 
water-plungers, 9 inches diameter, all of 12 inches stroke. This water- 
end has a displacement of 3.3 gallons for one stroke of one plunger, 
so that 924 gallons displacement is had when making 70 revolutions 
per minute.* 



* By revolution is meant one complete circuit of the motion of the reciprocating parts of the pump. 



4 6 



DUPLEX STEAM PUMPS. 



This pump has the Underwriters' rating of 750 gallons per minute, 
and is fitted for three lines of 2^-inch hose. 

This is the ordinary size for general use. 

Pipes will be as follows: steam, 3*^ inches; exhaust, 4 inches; 
suction, 10 inches; delivery, 7 inches. Price, $ 

No. 4 Fire-Pump is fitted with steam-cylinders 18 inches diameter, 
water-plungers, 10 inches diameter, all of 12 inches stroke. This water- 
end has a displacement of 4.08 gallons for one stroke of one plunger, 
so that 1 142 gallons displacement is had when making 70 revolutions 
per minute.* 

This pump has the Underwriters' rating at 1 000 gallons per minute, 
and is fitted for four lines of 2^-inch hose. 

This is the size for large factories. 

Pipes will be as follows : steam, 4 inches ; exhaust, 5 inches ; 
suction, 12 inches; delivery, 8 inches. Price, $ 



Although we make no guaranty as to ability to exceed the require- 
ments and rating of the Underwriters' specification, we would state that 
tests which we have made show that it is entirely safe and practicable to 
run a pump of this special design at a speed such that it will deliver a 
much larger quantity in an emergency, or for an hour or so during a fire; 
nevertheless, we advise that this excess of capacity be regarded as a 
margin against deterioration as the pump grows old, and would not 
advise planning of works on any other basis than that above. 

The following necessary fittings, heretofore charged for as extras, 
are included in the price, and regularly furnished as a part of this 
pump, viz. : 

A capacity-plate is added. 

A stroke- gauge is added. 

A vacuum-chamber is added. 

Two best quality pressure-gauges. 

A water-relief valve of large capacity. 

A set of brass priming-pipes and valves. 

From two to four Chapman hose-valves. 



The Underwriter Pumps made by us are from entirely new de- 
signs and patterns made in exact accordance with the circular issued by 
the Associated Factory Mutual Insurance Companies, and are not the 
ordinary trade pumps with the special fittings attached. 



* By revolution is meant one complete circuit of the motion of the reciprocating parts of the pump. 



BARR PUMPING ENGINE COMPANY. aj 



COMBINED DUPLEX PUMP AND BOILER. 

The combination shown on page 48 is one in which the pump 
and boiler are so arranged as to make a compact and self-contained 
pumping plant. 

The pump is our regular duplex type, the water-end being fitted 
with either pistons or plungers, as may be selected for the work. A heavy 
cast-iron base-plate is provided, to which the pump is securely fastened. 
This base-plate extends under the boiler, and is the means by which the 
pump and the boiler are connected so as to form the combined machine. 

The boiler is of the most approved vertical type, the shell being of 
either the best quality of flange iron or of steel, the latter being care- 
fully selected and tested before working, the standard tensile strength 
being 60,000 pounds per square inch, with an elastic limit of one-half 
that amount, test specimens developing an average elongation of 20 per 
cent, in eight inches, with a reduction of area of 40 to 50 per cent. 

The riveting receives special attention ; the quality of material, being 
of prime importance, is always under supervision and test. The holes 
are carefully spaced and reamed to secure perfect openings for the rivets. 
Whenever practicable, the rivets are machine driven, at a pressure of 30 
to 50 tons, which is sufficient to force the metal of the rivet to com- 
pletely fill the rivet-holes throughout its entire length before the head 
is formed. The tubes are lap-welded charcoal iron of the best manufac- 
ture, and carefully expanded in bored and reamed holes. The caulking 
is done by the Connery method, with round-nosed tools, on carefully- 
bevelled plates which are prepared before punching and rolling. 

These boilers are carefully proportioned for the work, and are 
adapted for a working-pressure of 100 pounds per square inch. 

The fittings furnished with each outfit comprise an auxiliary boiler- 
feed, safety-valve, steam-gauge, water-gauge, gauge-cocks, all the neces- 
sary steam-, exhaust-, and feed-water-pipes and valves. A three-way 
exhaust-cock is supplied, with blast-nozzle. A smoke-hood is furnished, 
but no smoke-stack. 

The extreme simplicity of our combined pump and boiler is such 
that any person of ordinary intelligence can manage it. It is designed 
for the use of contractors, railway pumping-stations, small water-works, 
country residences, sea-side and mountain resorts, hotels, tanneries, 
quarries, brick-yards, factories of all kinds. 

These pumps and boilers will be combined as given in the annexed 
tables, or with any other combination that may be desired. 



DUPLEX STEAM PUMPS. 




bize, 5 x z l A x 6 - 




Boiler-Base, with Shaking-Grate. 



BARR PUMPING ENGINE COMPANY. 



49 



COMBINED DUPLEX STEAM-PU MP AND BOILER. 

Self-contained and mounted on a heavy cast-iron base-plate. Specially 
adapted for railroad water-stations, quarries, contractors, sea-side hotels, 
country residences, manufacturing establishments, etc. Valves will be 
furnished suitable for cold water, hot water, alkaline liquor, or acidulated 
water, suited to the needs of the customer. This pump is noiseless in 
its operation, has plain, flat slide-valves driven by a positive movement 
outside of the steam-chest and in plain view at all times ; as our valve- 
motion has no dead centre, the pump is always in readiness for service. 
The delivery of water is at all times constant and uniform. The speed 
can be regulated to the utmost nicety for any required service. 



REGULAR PATTERN FOR GENERAL SERVICE. 























— 








=* 


■^ 


OD 

be 




m 6>0 


a 




s 




a c 


s 














1 




O © 


-I 


B 


"3 

O 


© 


.3° 

^ © 
a © 


CO =J 

coo 




t- 




S 2 


>*fc! 












1 


S 

03 


"So 


«,5 


03 

^5 












C=3 


2 


l-a 


<=> 




3 


4 


•05 


100 to 200 


4 


2 


5 


.068 


100 to 200 


4 


2% 


5 


.10 


100 to 200 


5 


2 l A 


6 


.12 


100 to 175 


5 


3X 


6 


.21 


100 to 175 


6 


3 


8 


.24 


100 to 150 


6 


4 


8 


•43 


100 to 150 


8 


4 


IO 


•54 


75 to 125 


8 


5 


IO 


.85 


75 to 125 



Gallons Delivered by Both 
Plungers at a Mean of 
the Ordinary Strokes 
per Minute. 



Per 
Minuts 



20 

30 

33 

58 

60 

108 

108 

170 



fer Hour. 



900 
1,200 
1,8=0 
1,980 
3,480 
3,600 
6,480 
6,480 
10,200 



Diameter of Pipes 
in Inches. 



1% 





1 










-= 








ea 


CO 


% 


I 


1 


I 1 / 


1 


1% 


I* 


^ 


I 1 / 


2 


I^ 


2 


iK 


3 


2 


3 


2 


4 



Price 
Complete. 



H 



DIMENSIONS OF BOILER. 



1 

1 
1 
1 
1 
2 
2 
3 











-a 


_.- 




























05 


O 














J= 


i 


bp 

'© 


s 

3 


« 


PEJ 


is 


24 


48 


31-2 


24 


60 


31-2 


24 


60 


31-2 


30 


60 


55-2 


30 


60 


55-2 


3° 


72 


55-2 


3° 


72 


55-2 


36 


84 


77-2 | 


36 


84 


77-2 



24 

36 
36 

33 
33 
45 
45 
57 
57 



LOW SERVICE OR TANK PUMPS. 



4 


3 


5 


• 15 


100 to 200 


45 


2,700 


u 


I 


2 


x^ 




24 


60 


31-2 


4 


4 


5 


•27 


100 to 200 


81 


4,860 


% 


I 


2^ 


x% 




24 


60 


31-2 


5 


4 


6 


•33 


100 to 175 


9i 


5,4°o 


I 


x* 


3 


2 




3° 


60 


55-2 


5 


5 


6 


•5i 


100 to 175 


140 


8,400 


I 


** 


3V2 


2 




30 


60 


55-2 


6 


5 


8 


.68 


100 to 150 


170 


10,200 


I 


i*A 


4 


2^ 




3° 


72 


55-2 


6 


6 


8 


.98 


100 to 150 


245 


14,700 


1 


*% 


4 


3 




30 


72 


55-2 


£ 


6 


10 


1.22 


75 to 125 


244 


14,640 


I* 


2 


4 


3 




36 


84 


77-2 


8 


7 


10 


1.66 


75 to 125 


332 


19,920 


15/2 


2 


5 


4 




36 


84 


77-2 



36 
36 

33 
33 
45 
45 
57 
57 



Note. — In a duplex pump the number of gallons delivered per minute is found by multiplying the displace- 
ment of one plunger by twice the number of strokes. 

Pumps can be brass-fitted at a slight advance over the regular prices given above. 

Sizes are designated by giving the diameter of steam-cylinders, the diameter of water-plungers, and the length 
of stroke ; thus, 3x2x4 for the first pump in the table, and similarly for any other size. 

Regular Pattern Pumps for general service may be used at any pressure not exceeding 150 pounds per 
square inch. 

Low-Service Pumps are intended for pressures from 25 to 50 pounds per square inch. 

4 



50 



DUPLEX STEAM PUMPS. 



COMBINED DUPLEX PUMP AND BOILER, 




PARR PUMPING ENGINE COMPANY. 



Si 



COMBINED DUPLEX STEAM-PUMP AND BOILER. 



These pumps will be furnished with either rubber or metal valves, and fitted with double- 
acting plungers, working in a solid brass ring. When fitted with packed pistons the water- 
cylinders are lined with brass. The water-ways and valve-areas are unusually large. Nothing 
has been omitted in design, material, or workmanship to make these pumps the foremost in 
the market. 











REGULAR PATTERN FOR GENERAL SERVICE. 








CO 

K 

co 

a 
s 

CO 
OS 

o 
-2 

09 
i 

8 


50 

s-< 

CO 

fax) 
c 
_g 

eg 

O 
«4 
CD 

CD 

S 

s 
s 

6 



So 



fao 


cS c 

co &> 

a a 

==s 

O CD 

.3° 

_^ 

C cq 
S £ 
!~ 


"3 

S3 

a 

S §0 

m £ 

S ® 

CO 
cS 

O 


Gallons Delivered by Both 
Plungers at a Mean of 
the Ordinary Strokes 
per Minute. 


Diameter of Pipes 


DIMENSIONS OP BOILER. 




Price 
Complete. 


-a 

CO 

«►* 


hi 
-S 

s 
s 

S 


*«3 

CO 

c»h 

O 

'5 
W 


,0 

CfrH 

O 

S-. 
CD 

"I 


CO 

CO 

X> 
=S 
E-i 


~& 

e 
3 


Per 

Minute. 


Per Hour. 


S* 
| 

CO 


cS 

■a 
* 

2 




CO 

5 


CO 

h 
eg 

-a 

CO 

3 


12 


i-47 


75 to 125 


294 


17,640 


1% 


4 




42 


87 


109-2 


60 


9 


6 


12 


i-47 


75 to 125 


294 


17,640 


2 


2/2 


5 


4 




42 


87 


109-2 


60 


IO 


6 


12 


1.47 


75 to 125 


294 


17,640 


2 


2% 


5 


4 




42 


87 


109-2 


60 


9 


7 


12 


2.00 


75 to 125 


400 


24,000 


2 


2^ 


6 


5 




42 


99 


109-2 


72 


IO 


7 


12 


2.00 


75 to 125 


400 


24,000 


2 


2% 


6 


5 




42 


99 


109-2 


72 


12 


7 


12 


2.00 


75 to 125 


400 


24,000 


2 l A 


3 


6 


5 




42 


99 


109-2 


72 


IO 


8 


12 


2.61 


75 to 125 


522 


3^320 


2^ 


3 


6 


5 




48 


102 


149-2 


72 


12 


8 


12 


2 61 


75 to 125 


522 


3 I ,32o 


^A 


3 


6 


5 




48 


102 


149-2 


72 


14 


8 


12 


2.61 


75 to 125 


522 


31,320 


3 


4 


6 


5 




48 


102 


149-2 


72 


12 


10 


12 


4.08 


75 to 125 


816 


48,960 


2V2 


3 


8 


7 




54 


108 


201-2 


78 


14 


10 


12 


4.08 


75 to 125 


816 


48,960 


3 4 


8 


7 




54 


108 


201-2 


78 


16 


IO 


12 


4.08 


75 to 125 


816 


48,960 


3 4 


8 


7 




54 


108 


201-2 


78 












LOW SERVICE C 


)R TANK PUMPS. 








6 


6 


12 


i-47 


75 to 125 


294 


17,640 


1 


* 


5 


4 




36 


84 


77-2 


57 


7 


6 


12 


i-47 


75 to 125 


294 


17,640 


i* 


2 


5 


4 




36 


84 


77-2 


57 


6 


7 


12 


2.00 


75 to 125 


400 


24,000 


1 


iH 


6 


5 




36 


84 


77-2 


57 


7 


7 


12 


2.00 


75 to 125 


400 


24,000 


«K 


2 


6 


5 




36 


84 


77-2 


57 


8 


7 


12 


2.00 


75 to 125 


400 


24,000 


i# 


2 


6 


5 




36 


84 


77-2 


57 


6 


8 


12 


2.61 


75 to 125 


522 


3 J ,32o 


1 


iK 


6 


5 




36 


96 


77-2 


69 


7 


8 


12 


2.61 


75 to 125 


522 


31,320 


i 1 / 


2 


6 


5 




36 


96 


77-2 


69 


1 8 


8 


12 


2.61 


75 to 125 


522 


31,320 


1^ 


2 


6 


5 




36 


96 


77-2 


69 


1 9 


8 


12 


2.61 


75 to 125 


522 


31,320 


2 


2% 


6 


5 




36 


96 


77-2 


69 


8 


10 


12 


4.08 


75 to 125 


816 


48,960 


iji 


2 


8 


7 




42 


87 


109-2 


60 


9 


10 


12 


4.08 


75 to 125 


816 


48,960 


2 


2^ 


8 


7 




42 


87 


109-2 


60 


10 


IO 


12 


4.08 


75 to 125 


816 


48,960 


2% 


3 


8 


7 




42 


87 


109-2 


60 



Note. — In a duplex pump the number of gallons delivered per minute is found by multiplying the displace- 
ment of one plunger by twice the number of strokes. 

Pumps can be brass-fitted at a slight advance over the regular prices given above. 

Sizes are designated by giving the diameter of steam-cylinders, the diameter of water-plungers, and the length 
of stroke ; thus, 8 x 6 x 12 for the first pump in the table, and similarly for any other size. 

Regular Pattern Pumps may be used at any pressure not exceeding 150 pounds per square inch. 

Low-Service Pumps are intended for water-pressures from 25 to 50 pounds per square inch. 



52 



DUPLEX STEAM PUMPS. 



COMPOUND STEAM-PUMPS. 

The engraving on page 54 represents one of several of our designs 
for compound pumping-engines. It is well known that ordinary direct- 
acting steam-pumps are not economical in the use of steam. Where a 
saving in fuel is a matter of any consequence, compounding is recom- 
mended. In the design referred to, the high- and low-pressure cylinders 
are placed end to end, thus enabling both pistons to be attached to the 
same piston-rod. This detail is fully shown in the illustration below. 



THE VALVE-GEAR. 

The valve-gear is in no respect different from that employed in our 
standard designs, the distribution of steam being effected in precisely 
the same manner. Steam is admitted to the smaller or high-pressure 
cylinder, forcing the smaller piston forward, with a pressure the same as 
that in the high-pressure steam-chest, until the end of the stroke is 
reached ; this steam, instead of being exhausted into the atmosphere, 
is carried into the steam-chest of the larger or low-pressure cylinder, it 
is there utilized in forcing the larger piston back to its original position 
in the return stroke. The larger area of the low-pressure cylinder, having 
only the pressure of the atmosphere as a resistance, corresponds in its 
effect to the action of a cut-off on a single cylinder-crank and fly-wheel 
engine, but without sacrificing any of the valuable features of the duplex 
method of handling water. 



ECONOMY IN COMPOUNDING. 

The advantages accruing from the use of high-pressure steam are 
now not only fully understood, but extensively practised. Non-condens- 
ing compound steam-ends are very effective and economical when from 
eighty to one hundred pounds steam pressure is used ; the gain over 
the ordinary direct-acting cylinders being from 25 to 40 per cent, depend- 
ing on the initial pressure and the ratio of expansion. Non-condensing 
steam-ends are not recommended for pressures below fifty pounds, as we 
do not believe a sufficient gain can be had to pay for the increased cost 
of the machinery. 



BARR PUMPING ENGINE COMPANY. 



53 



HIGH-SERVICE ATTACHMENT. 

We are prepared to furnish any size of compound steam-ends with 
a high-service attachment, by which the steam is admitted at full boiler- 
pressure in the low-pressure cylinders, thereby increasing the steam- 
power of the pump to double its ordinary rating. This attachment has 
been found very useful in elevator-pumps for special loads, for water- 
works pumps when needing additional power for fire service, and in a 
variety of other cases where additional power was required for a short 
time. 

STEAM-JACKETS. 

Whenever desired, we can furnish duplex-pumps, either simple or 
compound, in which the steam- cylinders will be fitted with steam- 
jackets. These jacketed-cylinders are designed with reference to proper 
circulation and drainage. 

The steam-connection for jacketed-cylinders should lead from the 
boiler direct, or, if this is not convenient, then from some point above 
the throttle-valve rather than from the steam-chest, the object being to 
get the advantage of the higher temperature due to the greater steam- 
pressure, and thus increase the efficiency of the jacket surrounding the 
steam-cylinder ; the effect desired being to keep the inner cylinder or 
lining at a temperature higher than that of the steam doing the work 
inside of the cylinder. 

LAGGING AND EXTRA FINISH. 

Any of our compound or other steam-ends can be fitted with reeded 
black walnut lagging, ornamented with brass bands. Planished iron, 
similarly ornamented, can also be furnished. 

Whichever style of lagging may be selected will have underneath 
it a properly prepared non-conducting clothing, hair felt being usually 
employed with the black walnut lagging, and wood staves with the 
planished iron. 

It is customary to give the pump an extra finish when the steam- 
cylinders are lagged. This extra finish is confined to such parts of the 
valve-gear and steam-end as are usually painted, unless an extra finish is 
desired. 

The lagging and extra finish add very much to the appearance of 
the pump, and at a very moderate cost v 



54 



DUPLEX STEAM PUMPS. 



COMPOUND DUPLEX PUMP. 




Size, 12 and 18 x 10 x 12. 



BARR PUMPING ENGINE COMPANY. 



55 



COMPOUND DUPLEX STEAM-PUMPS. 

The ratio of the high- and low-pressure cylinders to each other will depend upon the 
steam pressure, and whether or not a condensing apparatus is to be employed. For ordinary 
low pressures, say from sixty to seventy-five pounds, a ratio of 2 l / 2 to 3 areas is employed for 
non- condensing compound steam-ends; but for steam pressures above ninety pounds, and in 
connection with a condensing apparatus, a ratio of 4 to 1 is recommended. Dimensions and 
prices for sizes not given in this table will be furnished on application. 









£h 


£ 






«S b 










T3 


cuo 




CO Sf> 


a 


a 




« 9 


">> 


j2 




^ 








O <3> 


a 
3 


* 


c» 


(4 


-S 

CO 


s* 





^, O 






00 


« =5 








2^4 




b 





1 2 


CO 





-a 


%™ 


i 






.23 <§ 


<=» 



6 


-" 


O 


6 and 10 


12 


i-47 


7 and 12 


6 


12 


i-47 


8 and 12 


6 


12 


i-47 


6 and 10 


7 


12 


2.00 


7 and 12 


7 


12 


2.00 


8 and 12 


7 


12 


2.00 


9 and 14 


7 


12 


2.00 


10 and 16 


7 


12 


2.00 


8 and 12 


8 


12 


2.61 


9 and 14 


8 


12 


2.61 


10 and 16 


8 


12 


2.61 


12 and 18 


8 


12 


2.61 


14 and 20 


8 


12 


2.61 


8 and 12 


10 


12 


4.08 


9 and 14 


10 


12 


4.08 


10 and 16 


10 


12 


4.08 


12 and 18 


10 


12 


4.08 


14 and 20 


10 


12 


4.08 


8 and 12 


12 


12 


5-87 


9 and 14 


12 


12 


5-8 7 


10 and 16 


12 


12 


5-8 7 


12 and 18 


12 


12 


5.87 


14 and 20 


12 


12 


5-87 


10 and 16 


14 


12 


8.00 


12 and 18 


14 


12 


8.00 


14 and 20 


J 4 


12 


8.00 


16 and 24 


14 


12 


8.00 



a 



m 



75 to 125 

75 to 125 
75 to 125 

75 to 125 
75 to 125 
75 to 125 
75 to 125 
75 to 125 

75 to 125 
75 to 125 
75 to 125 
75 to 125 
75 to 125 

75 to 125 
75 to 125 
75 to 125 
75 to 125 
75 to 125 

75 to 125 
75 to 125 
75 to 125 
75 to 125 
75 to 125 

75 to 125 
75 to 125 
75 to 125 
75 to 125 



if -° 

^a 

SI'S 

a> o 

a 2 M 



220 to 367 
220 to 367 
220 to 367 

300 to 500 

300 to 500 

300 to 500 

300 to 500 

300 to 500 

391 to 652 

391 to 652 

391 to 652 

391 to 652 

391 to 652 

612 to 1020 
612 to 1020 
612 to 1020 
612 to 1020 
612 to 1020 

880 to 1467 
880 to 1467 
880 to 1467 
880 to 1467 
880 to 1467 

1200 to 2000 
1200 to 2000 
1200 to 2000 
1200 to 2000 



Gallons Delivered by Both 
Plungers at 100 Strokes 
per Minute. 



Per 

Minute. 


| 

Per 
Hour. 


294 
294 
294 


17,640 j 
17,640 
17,640 j 


400 


24,000 


400 


24,000 


400 


24,000 


400 


24,000 


400 


24,000 


522 


S 1 ^ 20 


522 


31,320 


522 


S 1 ^ 20 


522 


S 1 ^ 20 


522 


S 1 ^ 20 


816 
816 
816 
816 
816 


48,960 
48,960 
48,960 
48,960 
48,960 


1174 


70,440 


1174 


70,440 


1174 


70,440 


1174 


70,440 


1174 


70,440 


1600 


96,000 


1600 


96,000 


1600 


96,000 


1600 


96,000 



Per 
24 Hours. 



433,36o 
433,36o 
433,36o 

576,000 
576,000 
576,000 
576,000 
576,000 

751,680 
751,680 
751,680 
751,680 

751,680 

1,175,040 
1,175,040 
1,175,040 
1,175,040 
1,175,040 

1,690,560 
1,690,560 
1,690,560 
1,690,560 
1,690,560 

2,304,000 
2,304,000 
2,304,000 
2,304,000 



Diameter of Pipes 
in Inches. 



1% 



1% 

2 
2 
2^ 

3 



2 ^ 

3 

1/2 



2y 2 
3 



2y 2 

3 

3 



cS 

-a 

K 




CD 
CO 


2^ 


5 


! 3 


5 


3 


5 


2^ 


6 


3 


6 


3 


6 


4 


6 


4 


6 


3 


6 


4 


6 


4 


6 


5 


6 


5 


6 


3 


8 


4 


8 


4 


8 


5 


8 


5 


8 


3 


10 


4 


10 


4 


10 


5 


10 


5 


10 


4 


12 


5 


12 


5 


12 


6 


12 



PRICE. 



Note. — In a duplex pump the number of gallons delivered per minute is found by multiplying the displace- 
ment of one plunger by twice the number of strokes. 

An extra charge will be made for bed-plates. Pumps can be brass-fitted at a slight advance over the regular 
prices given above. 

Sizes are designated by giving the diameter of steam-cylinders, the diameter of water-plungers, and the length 
of stroke ; thus, 6 and 10 x 6 x 12 for the first pump in the table, and similarly for any other size. 

jft^The above pumps are designed for any service in which the water-pressure does not exceed 150 pounds 
per square inch. 



56 



DUPLEX STEAM PUMPS. 



i i iiiiuiiiiihiihihii iiiiin | 




- : ,-.. ..,.,. ■ . ■ ■ . 



BARR PUMPING ENGINE COMPANY. 



57 



COMPOUND DUPLEX PUMPS 18 AND 24 INCHES 

STROKE . 

The selection given below will meet the average requirements for water-works pumping- 
engines ranging from one and a half to five millions daily capacity. Our condensing apparatus 
is recommended in connection with these pumps, thereby increasing the power and lessening 
the fuel consumption. Other proportions and sizes will be quoted upon if the conditions of 
service are made known to us. 



io and 16 
12 and 18 
14 and 20 
16 and 26 

12 and 18 
14 and 20 
16 and 26 
18 and 30 

14 and 20 
16 and 26 
18 and 30 
20 and 32 

16 and 26 
18 and 30 
20 and 32 
22 and 36 

18 and 30 
20 and 32 
22 and 36 
24 and 40 

18 and 30 
20 and 32 
22 and 36 
24 and 40 

22 and 36 
24 and 40 
26 and 44 
28 and 48 
30 and 50 



M 



18 



24 
24 
24 
24 

24 
24 
24 
24 

24 

24 
24 
24 

24 
24 

24 
24 
24 



en '°B 
O 3 

S3 

^ © 

SS © 

a 2 



a- 1 



12.00 
12.00 
12.00 
12.00 

15-67 
15-67 
15-67 
15-67 

20.88 
20.88 
20.88 
20.88 

26.44 
26.44 
26.44 
26.44 



-2 

5=1 
CO 3 

© ^r* 

P ® 
is a 

GO O 

i 



53 to 80 
53 to 80 
53 to 80 
53 to 80 

53 to 80 
53 to 80 
53 to 80 
53 t° 8o 

53 to 80 
53 to 80 
53 to 80 
53 to 80 

40 to 60 
40 to 60 
40 to 60 
40 to 60 

40 to 60 
40 to 60 
40 to 60 
40 to 60 



32.64 1 40 to 60 

32.64 ; 40 to 60 

32.64 40 to 60 

32.64 ; 40 tO 60 

39.48 40 to 60 

39.48 40 to 60 

39.48 40 to 60 



•3 © 

feoo S3 

<u o 

:id p-t © 

si 



39 48 
39-48 



40 to 60 
40 to 60 



933 to 1408 
933 to 1408 
933 to 1408 
933 to 1408 

1272 to 1920 
1272 to 1920 
1272 to 1920 
1272 to 1920 

1660 to 2506 
1660 to 2506 
1660 to 2506 
1660 to 2506 

1670 to 2506 
1670 to 2506 
1670 to 2506 
1670 to 2506 

2115 to 3173 
2115 to 3173 
2115 to 3173 
2115 to 3173 

2611 to 3917 
2611 to 3917 
2611 to 3917 
2611 to 3917 

3158 to 4737 
3158 to 4737 
3158 to 
3158 to 
3158 to 



Gallons Delivered by Both 
Plungers at a Mean of 
the Ordinary Strokes per 
Minute. 



1 4737 
'4737 
'4737 



Per 


Per 


Minute. 


Hour. 


1 1 70 


70,200 


1 1 70 


70,200 


1 1 70 


70,200 


1 1 70 


70,200 


1596 


95,76o 


1596 


95,760 


1596 


95.760 


1596 


95,76o 


2084 


125,040 


2084 


125,040 


2084 


125,040 


2084 


125,040 


2088 


125,280 


2088 


125,280 


2088 


125,280 


2088 


125,280 


2644 


158,640 


2644 


158,640 


2644 


158,640 


2644 


158,640 


3264 


195,840 


3264 


195,840 


3264 


195,840 


3264 


195,840 


3948 


236,880 


3948 


236,880 


3948 


236,880 


3948 


236,880 


39 8 4 


236,880 



Per 

24 Hours. 



1,684,800 
1,684,800 
1,684,800 
1,684,800 

2,298,240 
2,298,240 
2,298,240 
2,298,240 

3,000,960 
3,000,960 
3,000,960 
3,000,960 

3,006,720 
3,006,720 
3,006,720 
3,006,720 

3,807,360 
3,807,360 
3,807,360 
3,807,360 

4,700,160 
4,700,160 
4,700,160 
4,700,160 

5,685,120 
5,685,120 
5,685,120 
5,685,120 
5,685,120 



Diameter of Pipes 
in Inches. 

(Subject to Change.) 



2^ 

3 
3 

2^2 

3 
3 
3% 

3 
3 

3% 
3% 

3 

3/2 
3^ 
4 

3% 

3Y2 

4 
4 

3/2 
3Vz 
4 
4 

4 
4 
4 
5 
5 



X 

m 


© 
© 

CO 


4 


12 


5 


12 


5 


12 


6 


12 


5 


12 


5 


12 


6 


12 


7 


12 


5 


14 1 


6 


14 


7 


14 


7 


14 j 


6 


14 


7 


J 4 


7 


14 


8 


14 


7 


16 


7 


16 


8 


16 


8 


16 


7 


18 


7 


18 


8 


18 


8 


18 


8 


20 


8 


20 


8 


20 


10 


20 


10 


20 



PRICE. 



Note. — In a duplex pump the number of gallons delivered per minute is found by multiplying the displace- 
ment of one plunger by twice the number of strokes. 

An extra charge will be made for bed-plates. 

Sizes are designated by giving the diameter of steam-cylinders, the diameter of water-plungers, and the length 
■>( stroke : thus, io and 16 x 12 x 18 for the first pump in the table, and similarly for any other size. 



58 DUPLEX STEAM PUMPS. 



WATER-WORKS PUMPS. 

Referring to the several designs illustrated in the preceding pages, 
together with the tables relating to sizes and capacities, it is thought 
that a selection can easily be made for pumping machinery suited to the 
requirements of small and medium-sized water-works. We are prepared 
to furnish these pumps either as ordinary duplex or with compound 
steam-ends ; both kinds can be fitted with our independent condensing 
apparatus. A list of duplex plunger-pumps, of 12 inches stroke, up 
to 1,500,000 gallons daily capacity is given on page 13, — the interior 
arrangement of the pump being shown on page 12. This design is the 
ordinary plunger and ring, having no adjustment, and is the best kind 
of pump for clear water. Another design, adapted for muddy and gritty 
water, is shown on page 18; it is in no respect different from the above- 
mentioned pump except that the plunger-ring contains a stuffing-box, 
fitted with a gland, and adapted for the use of Tuck's packing ; in other 
words, an inside-packed plunger-pump. An outside-packed plunger- 
pump is shown on page 20, and a table of sizes, etc., on page 21. 

For duplex piston-pumps, of 12 inches stroke, the reader is referred 
to page 14 for a sectional elevation, and page 15 for a table of sizes and 
capacities up to 2,000,000 gallons daily capacity. 

Duplex pumps, of 18 and 24 inches stroke, ranging from 1,500,000 
to 5,000,000 gallons daily capacity is given on page 27. These pumps 
will be made in any of the styles previously described, or specially de- 
signed to order when the conditions of service are made known to us. 

A list of compound duplex pumps, of 12 inches stroke, is given on 
P a g e 55- The general elevation given on page 54 shows the design 
usually adopted for small compound steam-ends. On page 56 is a sec- 
tional elevation giving the general arrangement of the larger sizes. 

A table of sizes and capacities for compound duplex pumps, of 18 
and 24 inches stroke, from 1,500,000 to 5,000,000 gallons daily capacity, 
is given on page 57. The dimensions given in the table are those which 
have found favor with water-works managers for sizes up to 5,000,000 
gallons daily capacity, but in addition to the sizes given we are prepared 
to make pumps on this same general design having a greatly increased 
pumping capacity. 

We are prepared to undertake the erection of pumping-stations, 
furnishing pump, boilers, and everything complete inside of the engine- 
room, and shall be in readiness at all times to send drawings and specifi- 
cations of pumping machinery if the conditions of service are made 
known to us. 



PARR PUMPING ENGINE COMPANY. 



59 



INDEPENDENT CONDENSING APPARATUS. 

It is a well-known fact that the atmosphere exerts a back pressure 
in all steam-engines equal to 14.7 pounds per square inch of piston area; 
also, that water converted into steam may be reconverted into its original 
state by condensation. Now, if this condensation be effected in a closed 
vessel, a vacuum is formed, and if such a vessel is properly made and 
attached to the exhaust-pipe of a steam-engine, by far the greater por- 
tion of the pressure of the atmosphere can not only be removed as back 
pressure, but be made to do useful work on the opposite side of the 
piston to which the vacuum occurs. It is such an apparatus that we wish 
to bring to the attention of owners and managers of steam machinery. 

CONDENSATION, 

As applied to the steam-engine, means taking the exhaust steam which 
would otherwise be allowed to escape into the open air, and conveying it 
into a closed vessel, where it is met by a spray of cold water, which so 
rapidly absorbs the heat contained in the steam that it ceases to retain its 
gaseous form, and is again reduced to its original bulk as water, occupying 
about 13 1 00 less space as water than it occupied as steam. This difference 
in volume accounts for the atmospheric pressure on the outside of the 
chamber or pipe, and as the vacuum extends throughout the whole dis- 
tance which the exhaust steam originally occupied, it, of course, is made 
available in the cylinder of an engine in the shape of decreased pressure 
on the exhaust side of the piston ; the atmospheric pressure remains 
constant, therefore we have the atmospheric pressure acting on one side 
of the piston and absent on the other, the gain being 14.7 pounds per 
square inch if a perfect vacuum is had. It amounts in average engineer- 
ing practice to from 12 to 13 pounds, or 24 to 26 inches of mercury, as 
the graduations of vacuum-gauges usually read. 

GAIN BY THE USE OF A CONDENSER. 

The gain to be secured by the employment of a condensing appara- 
tus may be measured in two ways : First, by the decrease in fuel con- 
sumption over that necessary when running non-condensing — this will 
represent a constant decrease in running expenses ; or, second, by in- 
creasing the power so that, for a given engine working nearly or quite 
up to its economical limit non-condensing, a still further addition to the 
power is had by increasing the mean effective pressure of steam in the 
engine-cylinder without the use of additional steam from the boiler. 



6o 



DUPLEX STEAM PUMPS. 




a 



B 



By way of illustration we insert a diagram of an 18 x 36 inch 
automatic cut-off engine, in which two diagrams are laid down upon 
the same atmospheric line. The dotted diagram represents the engine 
running non-condensing, the pressure of steam being 90 pounds per 
gauge or 105 pounds absolute; the point of cut-off is nearly, but not 
quite, three-eighths of the stroke; the back pressure is 16 pounds abso- 
lute, or one pound above the atmosphere, the engine running at 100 
revolutions per minute, the mean effective pressure being about 58^ 
pounds, thus developing 270 horse-power. By the use of a condensing 
apparatus the engine did the same work following one-quarter stroke 
instead of three-eighths as formerly, the indicated horse-power being 
exactly the same; this represents a saving in steam of 27.5 per cent. Let 
us suppose that an increase of power was desired without putting in a 
new engine, and that instead of cutting off shorter, the point of cut-off 
remained the same ; then we would have, by reason of the vacuum, an 
increase in mean effective pressure from 58.5 pounds to 73 pounds; this 
would increase the power of the engine from 270 horse-power to 337 
horse-power, a gain of 25 per cent, over the non-condensing engine 
without increasing the boiler capacity. 

These two examples will suffice to show that a very slight additional 
outlay to the original cost of the engine and boiler will yield a good 
return on the investment, and we urge its adoption in all cases where a 
good supply of injection water can be had. 



BARE PUMPING ENGINE COMPANY. 6 1 



INJECTION WATER. 

In round numbers, twenty-five times as much water is required to con- 
dense the exhaust steam from an engine as was evaporated in the boilers to 
form it. The actual quantity will vary, being lowest in the winter months 
and highest in the summer months, if obtained from a running stream ; if 
the supply is had from a well, the quantity will remain more nearly con- 
stant. A very convenient factor is to allow I y 2 gallons per horse-power 
per minute for high-grade automatic-engines, and from 2 to 2]/ 2 gallons per 
horse-power per minute for ordinary slide-valve or single-valve engines. 



TEMPERATURE OF DIS CHARGE. 

The temperature of the water discharged from the condenser will 
probably range between ioo° and 120 . The lower the temperature of 
the discharge 'the greater must be the quantity of the injection water ad- 
mitted, and this quantity may, under some conditions, be in excess of 
the highest economy ; so that, under average conditions, we do not 
think anything is gained in the attempt to carry the vacuum beyond 
26 or 27 inches. The former figure may be considered a good vacuum, 
and is easily had and maintained. There are conditions in which 28 to 
29 inches are had, but they do not apply to every-day practice. 



UTILIZING DISCHARGE WATER. 

In manufacturing establishments where large quantities of water are 
required, advantage can be taken of the fact that in condensing apparatus 
of our make, the water, after performing useful work in the condensing- 
chamber, can be elevated to a tank in any portion of the building and 
used over again for another purpose, such as washing, cooling metal 
plates, rolling mill-rolls, etc. The fact that the temperature of this dis- 
charge water will range from ioo° to 120 will in many cases be advanta- 
geous and effect a saving in the cost of heating other water for purposes 
in which this discharge water will answer equally well. In the sketch 
on page 64 we show a method of piping which will be found to answer 
the purpose very well. When the water is not required in the tank, the 
stop-valve may be opened and the water allowed to escape into a drain 
or any other convenient place. 



62 



DUPLEX STEAM PUMPS. 




AIR-PUMP. 



After the steam has been condensed, some provision must be made 
for the disposal of the water which would otherwise accumulate in the 
bottom of the condensing-chamber and render it inoperative. This is 
usually a reciprocating-pump, although other methods have been em- 
ployed, but not with the same satisfactory results. The function of the 
air-pump is solely to get rid of the water in the condenser; it adds noth- 
ing to the efficiency of the condensing apparatus except to render its 
operation continuous. 

If, for any reason, the air-pump should become inoperative, and an 
accumulation of water occur in the condensing-chamber, a float is pro- 
vided, as shown, which will open an air-valve and break the vacuum, 
thus preventing an overflow into the engine. 



BARR PUMPING ENGINE COMPANY. 



63 



INDEPENDENT CONDENSING APPARATUS. 

The proportions of steam- to water-cylinders in the table given below 
are those for ordinary service only. If the water is to be elevated into a 
tank, or any other service required of it in which an additional load is 
brought upon the steam-cylinders, they should be increased in diameter. 

All air-pump pistons are fitted for the use of Tuck's or similar 
fibrous packing ; the water-cylinders are lined with brass ; the valves are 
selected with special reference to the service required of them ; the piston- 
rods are made of brass, and are water-sealed at the pump-end. 



09 

1=1 

» 

a 



C9 
O 


Diameter 

of 

Steam 

Cylinder. 


Diameter 

of 

Water 

Cylinder. 


Length 

of 
Stroke. 


PRICE. 


DIMENSIONS OF 


Steam 
Pipe. 


Exhaust 
Pipe of 
Pump. 


Engine 

Exhaust 
Pipe.* 


Injection 
Pipe. 


Delivery 
Pipe. 


I 


5 


4 


8 




1 


i 1 / 


4 


^A 


2^ 


2 


5 


5 


8 




1 


*tf 


5 


3 


3 


3 


5 


6 


8 




1 


*x 


6 


3A 


3^ 


4 


6 


7 


10 




1 


1% 


6 


4 


4 


5 


6 


7 


12 




i# 


2 


7 


4 


4 


6 


6 


8 


12 




1% 


2 


8 


5 


5 


7 


8 


10 


12 




*# 


2 


9 


6 


6 


8 


9 


12 


12 




2 


2% 


10 


7 


7 


9 


10 


12 


12 




2 


*A 


10 


7 


7 


10 


10 


12 


18 




2 


2 l A 


10 


7 


7 


11 


10 


14 


18 




2 


zy 2 


12 


8 


8 


12 


12 


16 


18 




2% 


3 


14 


10 


10 



*The size of opening for engine exhaust may be varied to suit special requirements. Unless otherwise 
ordered the standard size will be furnished. 

The Independent arrangement permits the apparatus to be started in advance of the engine, thus increasing 
the power at a time when most needed, and allows the speed to be varied to conform to changing conditions of 
injection and load. 

The Duplex style gives a uniform motion, insuring durability of all working-parts and an extremely steady 
vacuum. 

The Injection supply to the Condenser is controlled by a valve and spray-pipe of special design, which 
secures accurate adjustment and prevents clogging. 

A Safety-attachment is provided which under all circumstances prevents the flooding of the engine. 

A water-seal for the suction-valves, as well as for the pistons and rods, is provided. 

Every detail is designed with reference to convenience of management, durability, and highest efficiency. 

To superiority of design is added the best possible material and workmanship. 

The Injection supply, within the limits of suction-lift, is raised by the apparatus itself, and the discharge can 
be delivered to an elevation if desired. 

Inquiries should be accompanied by as full particulars as possible of the conditions, such as : — 1. Diameter 
of engine-cylinder and length of stroke. 2. Revolutions per minute. 3. Steam-pressure. 4. Point of stroke at 
which steam is cut off. 5. Style or make of engine and the horse-power. 6. Indicator diagram if convenient. 
7. Water supply for injection, whether salt or fresh ; distance from engine, and approximate height from surface 
to engine-room floor. 



6 4 



DUPLEX STEAM PUMPS. 



hoi ± )jrw 



L^ 



ft 

-i - 












PARR PUMPING ENGINE COMPANY. 65 

PIPING A CONDENSER. 

On the opposite page is a sketch showing the essential details in 
piping a condenser, subject, of course, to such changes in direction and 
location of pipes as may be required to suit any particular engine. 

In leading the exhaust from the engine, provision should be made 
for escape into the atmosphere when, for any reason, it is desirable or 
necessary to run the engine non-condensing. We have shown a straight- 
way valve above the tee, connecting with the condensing-chamber; instead 
of this valve, we can furnish a check-valve which will open automatically 
if for any cause the condenser ceases to operate. 

The injection water may be taken from any convenient source of 
supply ; the lower end of the pipe should be provided with a strainer to 
keep out floating leaves, twigs, fish, etc. A straight-way valve should be 
located at some convenient position near the condenser. The hand-wheel 
on top of the condenser operates an adjustable valve in the spray-pipe; 
its function is simply to regulate the quantity of water passing through 
the perforated spray-pipe, and is not intended, nor can it be used, as a 
stop-valve ; therefore, the straight-way valve shown in the injection-pipe 
should not be omitted. 

The discharge-pipe may lead in any convenient direction. The 
water can be elevated by the condensing apparatus to any height desired. 
The sketch shows a straight-way valve by which the water discharged 
from the condenser may be elevated into a tank overhead by simply 
closing the valve ; should no further supply be required in the tank, the 
valve may then be opened, and the water allowed to escape in the drain. 

These suggestions in regard to piping do not refer to any steam- 
plant in particular, but merely show one method of piping which has 
been very satisfactory in its operation. 

We shall be glad to design a system of piping in connection with 
our condensing apparatus if customers will acquaint us with the facts in 
the case. 



The height of a Condenser above the source of injection- water 
supply should be as little as possible ; a distance of eighteen to twenty 
feet ought not to be exceeded, and may be as much less as circumstances 
will permit. For high lifts of injection- water a charging-valve and over- 
head supply will be found very advantageous in starting the condenser ; 
this supply should be shut off as soon as a vacuum is had. 

Start the condensing apparatus in advance of the engine, and shut 
down the engine before stopping the condenser. 

5 



66 



DUPLEX STEAM PUMPS. 



INDEPENDENT CONDENSING APPARATUS, WITH 
VERTICAL AIR-PUMP. 



T 



rp=- 




Crank and Fly- Wheel Pattern. Mounted on Bed-Plate. 



These pumps can be made to operate with a belt instead of an engine. Sizes and prices 
on application. 

Inquiries should be accompanied by as full particulars as possible of the conditions, such as : 
— I. Diameter of engine-cylinder and length of stroke. 2. Revolutions per minute. 3. Steam 
pressure. 4. Point of stroke at which steam is cut off. 5. Style or make of engine and the 
horse-power. 6. Indicator diagram, if convenient. 7. Water-supply for injection, whether salt 
or fresh ; distance from engine, and approximate height from surface to engine-room floor. 



BARR PUMPING ENGINE COMPANY. 



6 7 



INDEPENDENT CONDENSING APPARATUS, WITH 
VERTICAL AIR-PUMP. 

In addition to the condensing apparatus previously described, we 
are now prepared to furnish an apparatus of the design illustrated on 
the opposite page. The details of the condenser have already been 
described. The air-pump in this design is of the single acting type 
so long and satisfactorily employed in marine practice. The water of 
condensation, together with the injection-water, passes from the jet- 
condenser into a receiving-chamber included in the bed-plate of the 
apparatus. The piston of the air-pump being vertical is always sub- 
merged on the lower half of the stroke ; it is fitted with valves as shown, 
and another set of valves at the top of the working-barrel. It will be 
seen that the three sets of valves are wholly submerged, so that there is 
no chance whatever for air leakage. Each set of valves is provided with 
openings and hand-hole plates so that they may be examined or repaired 
without disturbing the main framing of the pump. The crank and fly- 
wheel measures the length of stroke, so that a fixed displacement is had 
at each revolution. 

The following list of sizes will meet the ordinary requirements of the 
trade, but we are prepared to make independent condensing apparatus 
of this t3^pe in any size. 



Diameter of Steam-Cylinder. 


Diameter of Water-Cylinder. 





c* 

00 

EH 

O 

"So 

S3 
CO 

►J 


GO 

~d 
=« .2 

^3 

Co 

— >■ 
co 

IS 

go 
jS 

co 

« 


DIMENSIONS OF 


PRICE. 


cd 
cu 

Pm 

1 

a 

ed 
co 


a 



CD 
CO 

.a 

t-t 


*_ 

eg 
-a 

a 

'5b 
a 






CO 

"5" 


CO 

ex. 
eu 
>-> 

S-. 

CO 

> 


6 
6 
6 

7 
8 
10 
10 
12 
12 

14 

16 

1 


7 
8 

,: 

12 

14 

16 
18 
20 

24 
28 


IO 
IO 
JO 
12 
12 
12 
12 
12 
18 
18 
18 


1.66 

2.16 

2.71 

408 

5-88 

8.00 

10.44 

13 22 

24.48 

35-28 

48.00 


1 

1 

1 

1 

l# 

l# 

2 
2 


I 1 / 
*% 

2 
2 
2 

2^ 
2% 
3 
3 


5 
6 
6 

7 
8 

9 

10 
10 
12 

14 
16 


3K 

4 

4 

5 

5' 

6 

6 

7 

8 

10 
12 


3^ 

4 

4 

5 

5 

6 

6 

7 

8 

10 
12 





*The size of opening for engine exhaust may be varied to suit special requirements. Unless otherwise 
ordered, the above size will be furnished. 



68 



DUPLEX STEAM PUMPS. 



DUPLEX AIR- OR VACUUM-PUMP. 




Size, 6x8x12. 



PARR PUMPING ENGINE COMPANY. 



69 



DUPLEX AIR- OR VACUUM-PUMP. 




5x6x8 Air- or Vacuum-Pump, with Cataract. 

These pumps are adapted for service on shipboard, and are designed for use with surface 
condensers. Pumps will be fitted either with or without cataract, to meet the requirements of 
any special service. 



14 
16 



18 



m -3 

« 2 

"08 2 

cS S3 
<=> 

a =« 



"5-3 

o 
eS 2 



•43 



1.66 

2.00 
2.61 
4.08 
5-87 
5-8 7 

8.80 
12.00 
15-66 



-£30 



75 to 125 
75 to 125 
75 to 125 

75 to 125 

75 to 125 
75 to 125 
75 to 125 
75 to 125 
75 to 125 

50 to 90 
50 to 90 
50 to 90 



-a — 

.2 -a 
PQ S 

■"•g.s 



64 to 107 
102 to 170 
147 to 245 

249 to 415 

300 to 500 
391 to 652 
612 to 1020 
880 to 1467 
880 to 1467 

880 to 1584 
1200 to 2160 
1566 to 2818 



Gallons Delivered by Both 
Pistons at a Mean of 
the Ordinary Strokes per 
Minute. 



Per 
Minute. 



Per lour. 



85 
136 
196 

33 2 

400 

522 

816 

1174 

1174 

1232 
1680 
2192 



5,100 

8,160 

11,760 

19,920 

24,000 

3 I >3 2 ° 
48,960 
70,440 
70,440 

73>9 2 ° 
100,800 

i3i,544 



Diameter of Pipes 
in Inches. 

(Subject to Change.) 






^A 







3 


a 






-*a 








pa 


CO 


*u 


3 


*x 


4 


*tf 


4 


*# 


5 


2 


5 


2 


6 


2 


7 


*Vz 


8 


2^ 


8 


2^ 


8 


*Vl 


10 


3 


12 



2^ 

3 



PRICE. 



Afate. — In a duplex pump the number of gallons delivered per minute is found by multiplying the displace- 
ment of one plunger by twice the number of strokes. 

An extra charge will be made for bed-plates. 

Sizes are designated by giving the diameter of steam-cylinders, the diameter of water-pistons, and the length 
of stroke : thus, 5 x 4 x 8 for the first pump in the table, and similarly for any other size. 



7o 



DUPLEX STEAM PUMPS. 



DUPLEX CIRCULATING-PUMPS. 



PISTON PATTERN 




These pumps are fitted with brass linings, packed pistons, and brass 
rods for salt water. They are double acting, the valve-gear is all in 
plain sight, no concealed parts, no dead centre ; the delivery of water is 
at all times constant and uniform. 



CO 

!-. 
O 

"Pi 

1 

a 

•35 

CO 

© 

CO 
CD 

a 

s 

4 
4 

5 
5 

6 
6 

8 
8 


CO 

Sh 

CD 

d 
;a 
>-> 

f-, 

O 

1* 

CD 

CD 

a 

3 
4 

4 

5 

5 
6 

6 
7 


CD 

M 

o 

o 
-a 
"S> 

!=l 

CD 

5 
5 

6 

6 

8 
8 

IO 
IO 


s 

CD 

O 
CD 

^S 

Oh 
CO 

a 

o 


1 
s 

&J 

co.S3 

p., 

£° 
0. 

>-, 




Gallons Delivered by Both 
Pistons at Stated Number 
of Strokes per Minute. 


Gallons Delivered by Both 
Pistons at a Mean of 
the Ordinary Strokes 
per Minute. 


Diameter of Pipes 
in Inches. 


PRICE. 
Brass-Fitted. 


Per 

Minute. 


Per Hour. 


S 

CO 


co 

n 

cS 


s=3 



CD 
CO 


CD 

ho 
as 

-a 

CO 

s 


•i5 
.27 

•33 
■5i 

.68 
.98 

1.22 
1.66 


100 to 200 
100 to 200 

100 to 175 
100 to 175 

100 to 150 
100 to 150 

75 to 125 
75 to 125 


30 to 60 
54 to 108 

66 to 115 
102 to 178 

136 to 204 
196 to 294 

183 to 305 
249 to 415 


45 
81 

9 1 
140 

170 
245 

244 
332 


2,700 
4,860 

5.460 
8,400 

10,200 
14,700 

14,640 
19,920 


% 
% 

I 
I 

I 
I 


1 
1 

2 

2 


2 
2 

3 
3 

4 
4 

4 
5 


2 
2 

2^ 
2^ 

3 
4 





Ata<» — In a duplex pump the number of gallons delivered per minute is found by multiplying the displace- 
ment of one piston by twice the number of strokes. 

An extra charge will be made for bed-plates. Pumps can be brass-fitted at a slight advance over the regular 
prices given above. 

For larger sizes, see page 16. 



BARR PUMPING ENGINE COMPANY. 



71 



BILGE-PUMPS AND BALLAST-PUMPS. 

The pumps tabulated on pages 9 and 16 will meet the ordinary re- 
quirements of either service, and can be furnished in either the plunger 
or piston pattern ; the latter, with packed pistons, are usually employed. 
These pumps are brass-fitted throughout for salt water. 

Pumps less than 12 inches stroke have the water-cylinders lined 
with brass seamless-drawn tubing. Water-ends of 12 inches stroke have 
removable cast-brass linings, as illustrated on page 14. 



WRECKING-PUMPS. 

Vertical single-acting wrecking-pumps are extensively used wherever 
a large volume of water has to be lifted and delivered within ordinary 
suction limits. The pump cannot deliver water above the curb which 
surrounds the top of the water-cylinder. • 



Steam- 
Cylinder. 

Inches. 


Water- 
Cylinder. 

Inches. 


Stroke. 
Inches. 


Capacity at 

150 Feet 

Piston Speed. 

Gallons. 


Steam-Pipe. 
Inches 


Exhaust- 
Pipe. 

Inches. 


Suction- 
Pipe. 

Inches. 


PRICE. 


Fitted for 
Fresh Water. 


Brass-Fitted 

for 
Salt Water. 


6 


12 


12 


435 


i# 


1^ 


6 






8 


16 


12 


783 


iK 


2 


8 






10 


20 


12 


1224 


iV. 


2 


10 






12 


24 


12 


1762 


2 


2^ 


12 






14 


3° 


18 


2754 


2^ 


3 


14 






16 


36 


18 


3966 


2 /2 


3 


18 







For irrigating purposes these pumps present special advantages, 
being light, easily handled, simple in construction, durable in use, and 
of large capacity. 

The valves are of vulcanized rubber, the valve-seats of gun-metal 
composition, and of the design illustrated on page 17. 



When ordering, please state whether the pump is to be used for fresh or for salt water. 



72 



DUPLEX STEAM PUMPS. 



COMBINED DUPLEX AIR-PUMP AND BOILER 

FEED-PUMP. 




oo 

cr> 
x 

vo 

vo 

N 



PARR PUMPING ENGINE COMPANY. 



73 



COMBINED DUPLEX AIR AND BOILER FEED-PUMPS, 

FOR STEAM-TUGS, YACHTS, ETC. 

This style of pump does not differ materially from those tabulated on page 68, except in 
the addition of the boiler feed-pump. Both water-ends are brass lined, and fitted with brass 
pistons adapted for the use of Tuck's or other fibrous packing. The piston-rods are of brass, 
and provided with water-sealed stuffing-boxes. Valves will be furnished of metal or rubber 
adapted to the service required. In making comparisons it should be borne in mind that our 
duplex pumps have two steam-cylinders and two double-acting pistons, therefore double the 
capacity of a single pump of the same dimensions. 



1 








Displacement 
in Gallons 


43 


Displacement 


SIZE OP PIPES. 




13 








A 


in Gallons 


(Subject to Change according to Service.) 




.2 


• 


s=- 




for One Stroke of 
One Piston. 


3 


by Both Pistons at 








>> 

C3 


3 


B 




s- a 


100 Strokes per 










a 


p* 




. 




puS 

CO 


Minute. 


Air-Pump. 


Feed-Pump. 


Steam-End. 




a 

So 


Si 

■3 


c£ 


© 














PRICE. 




























GO 






iso 




















































u 




Si 


O 


a 


B 


s^*© 


a 


a 




sA 




fA. 




_^ 






a 


B 




3 
Pm 


P« 


c3 

S3 


Pi 


Ph 





> 






>- 


a 


S3 
03 






a 




a 


Si 


« 




Si 


















































6 


4 


2 


-a 

8 


-a! 


fe 


<=> 


-a) 


&H 


CO 


2 


CO 

I* 




1 


CO 

I 


1/2 




■43 


.11 


75 to 125 


86 


22 


3 




6 


5 


3 


8 


.68 


.24 


75 to 125 


136 


48 


4 


2>4 


2 


1/2 


I 


1/2 




6 


6 


3 


8 


.98 


•24 


75 to 125 


196 


48 


4 


2% 


2 


1% 


■ 


tf 




8 


7 


3 


IO 


1.66 


•3o 


75 to 125 


33 2 


60 


5 


4 


2 


1/2 


•H 


2 




8 


7 


3 


12 


2.00 


•37 


75 to 125 


400 


73 


5 


4 


2 


»# 


« 


2 




8 


8 


3 


12 


2.61 


•37 


75 to 125 


522 


73 


6 


5 


2 


1/2 


1^ 2 




9 


IO 


4 


12 


4.08 


.65 


75 to 125 


816 


130 


7 


6 


3 


2 


2 


*5* 




IO 


12 


4 


12 


587 


.65 


75 to 125 


1174 


130 


8 


7 


3 


2 


2 


2% 





Note. — In a duplex pump the number of gallons delivered per minute is found by multiplying the displace- 
ment of one piston by twice the number of strokes. 

An extra charge will be made for bed-plates. 

Sizes are designated by giving the diameter of steam-cylinders, the diameter of water-plungers, and the length 
of stroke ; thus, 6 x 4 x 2 x 8 for the first pump in the table, and similarly for any other size. 



COMBINED DUPLEX AIR AND CIRCULATING PUMPS. 



W 

Si 
9 
13 




si 

a 

Pi 




Displacement 
in Gallons 


inute 


Displacement 
in Gallons 


SIZE OP PIPES. 
(Subject to Change according to Service.) 






. 


br> 




for One Stroke of 
One Piston. 


S3 


by Both Pistons at 










a 


a 

Pi 


3 




*- S3 

8.1 


100 Strokes per 
Minute. 


Air-Pump. 


Circulating- 


Steam-End. 




a 

CO 


Si 

-a 




Si 

3 


M 
2 




4? Pi 
a* 
s 








Pump. 




PRICE. 




















c*i 




Ct-I 

O 


e*i 

O 


co 


A 


bo 

S3 


3a° 




bO 

S3 










1 












a 


'-3 ei 


t>-.o 


a 


'-43 ei. 




sA 




t»> 


•*£ 






a 
a 


CD 

a 

05 


a? 

a 




S3 
CW. 

Si 


js a 
<£> Pi 

Si" 


■■3 


P 

Ph 
Si 


« a 

si => 

Ph 

Si" 




-3 

pi 




.2 


> 
"3 


§ 1 i 




6 


5 


5 


^3 
8 


-U 








-A 


C3 


CO 

4 


2^ 


CO 

4 


<=> 


c/-> 1 H 




.68 


.68 


75 to 125 


I36 


I36 


2^ 


I I* 




7 


6 


6 


12 


i-47 


i-47 


75 to 125 


294 


294 


5 


4 


5 


4 


I^ 2 




8 


8 


8 


12 


2.61 


2.61 


75 to 125 


522 


522 


6 


5 


6 


5 


1/2 2 




9 


8 


9 


12 


2.61 


3-3o 


75 to 125 


522 


660 


6 


5 


8 


7 


2 | 2^ 




10 


9 


10 


12 


3-3o 


4.08 


75 to 125 


660 


8l6 


8 


7 


8 


7 


2 | 2^ 




12 


10 


12 


12 


4.08 


5-8 7 


75 to 125 


8l6 


1 174 


8 


7 


10 


8 


2H; 3 




14 


12 


H 


12 


5-8 7 


8.00 


75 to 125 


1174 


l600 


10 


8 


12 


IO 


3 | 4 





Any other size or combination made to order. 



74 



DUPLEX STEAM PUMPS. 



X 




j 




cu 




D 




Q 




X 


CO* 


H 


a. 




S 

D 


P 


a. 
i 


a 


a 


2 


2 


l-H 


l-H 


m 


H 


§ 


< 


o 


J 


u 


D 




O 


ol 


« 


w 




CO 




z 


p 


w 


Z 


p 


< 


2 


i 


o 


g 


o 


H- 1 




< 


w 




u 




< 




fe 




K 




D 




CO 






r 



r^ 



3D 




[ ^wrn 




» 



ro 



PARR PUMPING ENGINE COMPANY. 



75 



SURFACE CONDENSER, AIR-, AND CIRCULATING-PUMP 

C OMBINED. 

The illustration on the opposite page gives a general idea of the 
arrangement of surface condenser, air-, and circulating-pumps com- 
monly supplied stationary steam-plants. Modifications may be made 
for use on shipboard, if the illustration lacks in compactness or any 
other quality. 

The condenser can be made of either iron or brass, suited to the 
requirements of any particular case. The tubes will be seamless drawn, 
passing through brass tube-heads bored to fit the tubing, counterbored 
for the packing, and tapped to admit a threaded brass ferrule, thus 
securing a tight joint with ample provision for the expansion and con- 
traction of tubes incident to a varying temperature. 

The circulating pumps are the duplex double-acting reciprocating 
type, fitted with rubber valves for cold water. The air-pumps are of the 
same type as the circulating-pumps, except that the valves are of a 
material suited to boiling water. The air-pump supply is taken from 
underneath the condenser, and flows into the pump. 

The steam-cylinders for the combined circulating- and air-pumps 
will be made of any suitable diameter. 

Boiler feed-pumps can be fitted to the ends of piston-rods of the 
air-pumps, if so desired, so that the flow of water of condensation from 
the condenser to the boiler shall be a continuous operation. A small 
hot-well should be provided in such a case, a device which is not shown 
in the engraving. 



SURFACE CONDENSERS. 

We are prepared to furnish surface condensers in any size, either 
with or without the combination of air- and circulating-pumps. We 
shall be pleased to receive from correspondents the data necessary for us 
to prepare designs and proposals for work of this nature. 

We refer to page 73 as containing a list of sizes of combined 
duplex air- and circulating-pumps, also a list of air- and boiler feed- 
pumps, and to page 69 for a list of sizes of air- or vacuum-pumps, to be 
used when other sources of supply are had for the circulation of the 
water through the condenser. 



;6 



DUPLEX STEAM PUMPS. 




in 



<u 

N 



PARR PUMPING ENGINE COMPANY. 



77 



DUPLEX GEARED POWER-PUMPS, WITH CENTRALLY- 
PACKED PLUNGERS. 

The smaller sizes are well adapted for feeding steam-boilers, house 
service, etc. 

The larger sizes are suitable for handling large quantities of water 
at either high or low pressures. The packed plungers are fitted with 
outside stuffing-boxes, which can be adjusted without stopping the 
pump. 

The ratio of gearing can be changed to suit any required condi- 
tions of service. 

This list of pumps is for any service not exceeding 150 pounds 
per square inch, but they can be adapted to any pressure suitable for 
elevators, accumulator service, etc. 

Combined with an electric motor, this type of pump is well adapted 
for mines and other localities where steam pumps cannot be used with 
advantage. 



Piston or 


"0 




ivered 
Slated 
ns of 


stated 
ns for 
dsper 
cent, 
ses. 


Size and Speed of Driving- 


Diameter of 




Plunger. 


pi . 

« C/3 

£§ 
> t- 

S3 S3 

.2.2 

"3 "** 
C3 


S3 

a 
s 

S-, 

O. 
en 

a 



33 

s> 

09 
PS 


S ™"° 

111 

_Q _*( 

a. S« 
p-*:3 t- 


«s>- s j 
•3 £§ M 1 

gyp- » ■"-'^ C 

*" ° £ «- 
S* Is g-S- 2 

£,<= g cts 

1 a *- .§ 

s- IS c3 OO sj 

O 

w 


Pulley Recommended. 


Pip 


es. 


PRICE.* 


a 






S-i 
GO 


09 

i 

* 
s 


PU 
CO 

C - 

O <E) 

03 ® 


03 


(-. 

04 

J3 


^A 


6 


.48 


30 to 40 


14 to 19 


1 to l}£ 


*4 


4 


120 to 160 


1J/2 


iK 




3 


8 


.96 


30 to 40 


28 to 38 


2 to 3 


18 


4 


120 to 160 


2 


i« 




4 


10 


2.16 


25 to 40 


54 to 86 


4 to 6 


22 


4 


100 to 160 


3 


2 




5 


10 


3-40 


25 to 40 


85 to 136 


6 to 10 


24 


4 1 100 to 160 


4 


3 




5K 


12 


4.48 


20 to 40 


89 to 179 


6 to 12 


28 


6 


80 to 160 


4 


3 




6 


12 


5-88 


20 to 40 


117 to 235 


8 to 16 


3° 


7 


80 to 160 


5 


4 




7 


12 


8.00 


20 to 40 


160 to 320 


11 to 22 


34 


7 


80 to 160 


6 


5 




8 


12 


10.44 


20 to 40 


208 to 416 


15 to 30 


35 


8 J 80 to 160 


6 


5 




10 


12 


16.32 


20 to 40 


326 to 652 


23 to 46 


42 


12 80 to 160 


8 


7 




12 

1 


12 


23.48 


20 to 40 


469 to 939 


33 to 66 


48 


14 80 to 160 


10 


8 





* Price does not include the driving-pulley, but the end of the shaft will be extended 
sufficiently for any suitable connection. 

An extra charge will be made for bed-plates. Pumps can be brass fitted at a slight 
advance over the regular price given above. 

Designs and estimates for sizes not contained in the above table will be promptly furnished 
upon receipt of the necessary data. 



/S 



DUPLEX STEAM PUMPS. 





z 




pd 


2 


w 

h 
h 


D 


< 


0. 


& 


& 


E 


ti 


W 


£ 



2 


o 


p 


a, 


J 


Q 


(X 


W 


K 


tt 





< 

w 
a 




Lj 



w 




BARR PUMPING ENGINE COMPANY. 



79 



DUPLEX GEARED POWER-PUMPS. 

The pump shown on the opposite page will be supplied with either 
plungers or pistons, to best meet the requirements of a purchaser. The 
general construction of the water-end does not materially differ from 
that of our regular duplex steam pumps. 

Valves will be furnished for either hot or cold water, and suited to 
any required pressure. 

The gearing will be arranged for any water-pressure up to 150 
pounds per square inch. All working joints are unusually large and 
made adjustable for wear. The problem of handling water under a high 
pressure, with cranks at right angles, is an altogether different one from 
that which obtains in ordinary duplex pumps, so that power pumps re- 
quire not only to be heavier and stronger, but also require to run at a lower 
rate of speed than usually obtains in the use of duplex steam pumps. 

These pumps are designed for use in connection with water-wheels, 
electric-motors, line-shafting, gas-engines, etc. The jack-shaft can be 
arranged for the use of a pulley, a coupling, friction clutch, or any other 
driving mechanism that will be most convenient. 







s 




d3 O 












Piston or 


> 






5 ffl a g 


Size and Speed of Driving- 
Pulley Recommended. 


Diameter of 




Plunger. 


*« Zt 

gg 

rt » 

CO ° 

a a 
_© o 

"^3 ** 

c5 


3 

a 
a 

s- 
p< 

CO 

a 



"o 

t» 

pci 


a &>J? 

.2 a« . 

O-. cS 

is -^ 
§.•5 fe"? 

a* 5 a g 


*= ° 3 fe m 

"g j3 O-t a, 

*• ° 2 *» 

§ a*- ri*§ 


W 


Pij 


es. 


PRICE* 


i 
s 






CO 


s 

S3 


m 

S3 
|5=< 


eu 

CO 

a . 

a> 
I S 

g's 

Pi 


a 
_© 


a 

CO 


bO 

o3 


CO 


2^ 


6 


.48 


30 to 40 


14 to 19 


1 to 1% 


14 


4 


120 to 160 


1% 


15* 




3Va 


6 


.84 


30 to 40 


25 to 33 


2 tO 2% 


16 


4 


120 to 160 


2 


1^ 




4 


8 


I.72 


30 to 40 


51 to 68 


3^ to 5 


18 


4 


120 to 160 


3 


2 




5 


10 


3-40 


25 to 40 


85 to 136 


6 to 10 


24 


4 


100 to 160 


4 


3 




6 


12 


5-88 


20 to 40 


117 to 235 


8 to 16 


30 


7 


80 to 160 


5 


4 




7 


12 


8.oo 


20 to 40 


160 to 320 


11 to 22 


34 


7 


80 to 160 


6 


5 




8 


12 


10.44 


20 to 40 


208 to 416 


15 to 30 


36 


8 


80 to 160 


6 


5 




10 


12 


16.32 


20 to 40 


326 to 652 


23 to 46 


42 


12 


80 to 160 


8 


7 




12 


12 


23.48 


20 to 40 


469 to 939 


33 t0 66 


48 


14 


80 to 160 


10 


8 




14 


18 


48.00 


20 to 30 


960 to 1440 


67 to IOO 














16 


18 


62.60 


20 to 30 


1252 to 1878 


86 to 130 














18 

1 


18 


79.00 


20 to 30 


1580 to 2370 


1 10 to 166 















* Price does not include the driving-pulley, but the end of the shaft will be extended 
sufficiently for any suitable connection. 

An extra charge will be made for bed-plates. Pumps can be brass fitted at a slight 
advance over the regular price given above. 

Designs and estimates for sizes not contained in the above table will be promptly furnished 
upon receipt of the necessary data. 



8o 



DUPLEX STEAM PUMPS. 



THREE-THROW SINGLE-ACTING GEARED 

■ ■ * ■ ■ ■ . -i . — ^ 

POWER-PUMP. 




Capacity, two gallons per revolution. 



BARR PUMPING ENGINE COMPANY. 



8l 



THE ELECTRICAL-PUMP. 

This pump is designed for use with an electric motor. The water- 
end is fitted with three single-acting plungers with outside stuffing- 
boxes, which can be adjusted whilst the pump is in motion. The 
angular advance of each plunger is 120 , so that a practically con- 
tinuous stream is had at the delivery. 

The ratio of gearing is usually 4 to 1, but any other proportion 
can be provided for special work. 

Each pump is provided with a heavy cast-iron bed-plate, which in- 
cludes the bearings necessary for the shafts. 

The gear and pinion are both cut so that their operation is 
noiseless. 

The engraving shows a pulley attached to a pinion-shaft, by which 
a belt, leading from the electric motor, gives the pump its necessary 
motion ; a gear can be fitted instead, and thus be driven by the motor 
direct, should it be deemed a preferable arrangement. 



These pumps are suitable for any service where the water-pressure 
does not exceed 150 pounds per square inch. 





J3 

> 

a 

>-. 
,0 

CO 

a 


'3 

cS 


Size of 
Plungers. 


Gallons 
Delivered when 

making 
40 to 80 Revolu- 
tions 
per Minute. 


Gallons at Average Revolu- 
tions. 


Size of Pulley. 





CO 


CO 

s 


PRICE.* 


-S 

a 
s 




O 

c/a 


% 

I 
2 

3 
4 


3^8 
7 


4 
5 

6 
8 
8 


20 to 40 

40 to 80 

80 to 160 

120 to 240 

160 to 320 


30 

60 

120 

180 

240 


16 x 4 
18 x 4 
24 x 5 
30 x 5 
32 x 6 


2 
3 
4 
5 
6 


I 

2 

3 
4 
4 





* Price does not include the driving-pulley, but the end of the shaft will be extended 
sufficiently for any suitable connection. 

Pumps can be brass-fitted at a slight advance over the regular price given above. 

Designs and estimates for sizes not contained in the above table will be promptly furnished 
upon receipt of the necessary data. 

6 



82 DUPLEX STEAM PUMPS. 



DUPLEX PRESSURE PUMPS. 

The several pressure pumps listed in the accompanying tables are 
thought to cover every ordinary want so far as regards sizes for water- 
pressure, capacity, steam-pressure, and length of stroke. Notwithstand- 
ing the unusual number of sizes given in the accompanying tables, there 
are likely to be still others required in actual service. We desire to say 
that we are ready at all times to make designs and prepare specifications 
for pumping machinery suited to the special needs of our correspondents. 

The pressure pumps included in this catalogue are intended to cover 
the ordinary requirements for steel-works, hydraulic lifts and cranes, 
accumulator service, oil-pipe lines, cotton-seed oil-works, etc. All pumps 
will be good for 500 pounds per square inch, and from that to any 
pressure that may be required ; the smaller diameters can be fitted for 
pressures ranging from 1000 to 5000 pounds per square inch, or more, 
if desired. Correspondents will please give us full information regarding 
the work to be done, that a proper selection of design may be made 
suited to the work. 

These pumps are all fitted with double-acting plungers, working 
through stuffing-boxes at each end of the pump-barrels ; parallel-rods 
couple the outside plungers to the cross-head in the centre, to which are 
also secured both the inside plungers and the steam piston-rods. The 
stuffing-boxes are quite deep, so that a liberal quantity of packing can 
be inserted at one time. The stuffing-box glands can be adjusted while 
the pump is in motion. 

For the smaller and medium sizes the water-ends are cast with a 
central partition separating the two working-ends of the barrel. For the 
largest sizes each end is cast separately and arranged for the insertion 
of a blank flange between the two ends of each working-barrel on 
each side, as shown on page 92. 

The valves and seats in this style of pump, being subject to high 
pressures, receive special attention ; both form and material are selected 
with reference to the highest efficiency in the most difficult service. All 
valves are easily accessible for examination, and both the valves and the 
valve-seats are removable, a convenient arrangement in case of repair or 
renewal. 

We are prepared to make pressure pump water-ends of cast iron, 
open-hearth steel, or phosphor bronze, to meet the requirements of any 
service. 



BARR PUMPING ENGINE COMPANY. 



83 




REMOVABLE VALVES AND SEATS. 



The illustration given above represents one of the valve-seats and 
nest of valves contained in the pot-valve chambers of a g" x 36" pressure- 
pump water-end, shown on page 92. All of our pot-valve chambers have 
removable seats and valves, the design being arranged according to the 
quantity of water to be pumped and the pressure in ordinary service. 
This arrangement permits the removal of one set of valves and the sub- 
stitution of another without stopping the pump but a few minutes when 
making the change. As all the pot-valve chambers belonging to the 
pump are bored out to gauge, there will be required but one extra set 
of valves and a seat for repairs to fit any quarter of the water-end of 
the pump. 

The valves, springs, and seat will be made of gun-metal or phosphor- 
bronze, as may best be suited to the work to be done. 



8 4 



DUPLEX STEAM PUMPS. 



§ 
D 

D 

CO 
CO 

X 
W 

a. 

D 
Q 




00 



X 

VO 






BARR PUMPING ENGINE COMPANY. 



85 



PRESSURE PUMPS LESS THAN 12 INCHE S STROKE. 

These pumps are specially fitted for heavy pressures. The movement 
of each steam-valve is controlled by the piston of the opposite cylinder, 
transmitted across the framing of the pump to each valve-rod respectively. 
This movement is always certain in its action. Its entire freedom from 
supplemental valves, ports, and other complications makes it the most 
desirable valve-gear known ; and, as the valve of one cylinder is actuated 
and controlled by the piston of the opposite cylinder, no dead points can 
occur in the stroke ; consequently, the pump can be started at any time 
with absolute certainty. The water-ends have outside connected double- 
acting plungers, with external adjustable stuffing-box glands. The valves 
and seats are carefully designed for the work required of them. The 
delivery of water is at all times constant and uniform. 

These pumps can be made suitable to any pressure from 500 to 
5000 pounds. 



Ratio Steam 
to Water. 


">> 

a 

CO 

O 

Si 
0} 

CD 

a 

S 

5 


fa 

bo 

S3 

s€ 

-2 

t—i 


Si 

-2 

to 

a 
s 

1 


o5 
M 



Si 
CO 


to 

S3 
da 

►J 


Displacement in Cubic Inches 
for One Stroke of One Plunger. 


Ordinary Strokes per Minute 
of One Plunger. 


Cubic Inches Delivered by Both 
Plungers at Stated Number 
of Strokes per Minute. 


Water Delivered by Both 
Plungers at a Mean of 
the Ordinary Strokes 
per Minute. 


Di< 

a 

eg 

CD 
CO 

I 


imeter of Pi 
in Inches. 


pes 

& 
1 


PRICE. ; 


Cubic 
Inches. 


Gallons. 


-a 

H 


S3 
O 


25 to I 


6 


4-7 


30 to 90 


282 to 846 


564 


2.4 




16 to I 


5 


i# 


6 


7-4 


30 to 90 


444 t° J 33 2 


888 


3-8 


I 


*y* 


I 


% 




11. 1 to I 


5 


1% 


6 


10.6 


30 to 90 


636 to 1908 


1272 


5-5 


I 


1 1 / 


I# 


H 




6.25 to I 


5 


2 


6 


18.8 


30 to 90 


1128 to 3384 


2256 


9-7 


I 


*x *% 


1 




36 to I 


6 


1 


8 


6.2 


30 to 80 


372 to 992 


682 


2.9 


I 


*V2 


I 


% 




16 to I 


6 


1/2 


8 


14.1 


30 to 80 


846 to 2256 


1551 


6.7 


I 


1% 


*% 


1 




9 to I 


6 


2 


8 


25-1 


30 to 80 


1506 to 4016 


2761 


11.9 


I 


IK 


2 


*K 




5-7 6 to z 


6 


2% 


8 


39-3 


30 to 80 


2358 to 6288 


43 2 3 


18.7 


I 


1% 


2 


i* 




4 to 1 


6 


3 


8 


56.6 


30 to 80 


3396 to 9056 


6226 


28.7 


I 


i l 4 


2/2 


X* 




64 to 1 


8 


1 


10 


7.8 


30 to 70 


468 to 1092 


780 


3-4 


*V2 


2 


I 


% 




28.44 to x 


8 


*% 


10 


17.7 


30 to 70 


1062 to 2478 


1770 


7-7 


*% 


2 


»tf 


I 




16 to 1 


8 


2 


10 


3 J -4 


30 to 70 


1884 to 4396 


3 J 4i 


13.6 


*V2 


2 


2 


«tf 




10.24 l0 x 


8 


^A 


10 


49.1 


30 to 70 


2946 to 6874 


4910 


21.2 


*% 


2 


2 


x# 




7. 11 to I 


8 


3 


10 


70.7 


30 to 70 


4242 109898 


7070 


30.6 


iV* 


2 


2*4 


xM 





Note. — In a duplex pump the number of gallons delivered per minute is found by multiplying the displace- 
ment of one plunger by twice the number of strokes. 

An extra charge will be made for bed-plates. 

The larger sizes in the table can have the plungers made of brass at a slight advance over the ordinary prices. 

Sizes are designated by giving the diameter of steam-cylinders, the diameter of water-plungers, and the length 
of stroke; thus, 5 x i x 6 for the first pump in the table, and similarly for any other size. 



86 



DUPLEX STEAM PUMPS. 



a, 

2 

a* 

w 

CO 
CO 

W 
Pu 

X 

w 
cu 

Q 




N 



PARR PUMPING ENGINE COMPANY. 



87 



PRESSURE PUMPS OF 12 INCHES STROKE. 

These pumps are specially fitted for heavy pressures. The movement of each steam-valve is 
controlled by the piston of the opposite cylinder, transmitted across the framing of the pump to 
each valve-rod respectively. This movement is always certain in its action. Its entire freedom 
from supplemental valves, ports, and other complications makes it the most desirable valve-gear 
known; and, as the valve of one cylinder is actuated and controlled by the piston of the oppo- 
site cylinder, no dead points can occur in the stroke; consequently, the pump can be started at 
any time with absolute certainty. The water-ends have outside connected double-acting plungers, 
with external adjustable stuffing-box glands. The valves and seats are carefully designed for 
the work required of them. The delivery of water is at all times constant and uniform. 

These pumps can be made suitable for any pressure from 500 to 2500 pounds. 



Ratio Steam 
to Water. 


W 

S-i 
CD 

.s 

CV3 

a 

co 


u 

a 


In 

bo 
S3 
J3 

cu 

S-. 

O 

S-. 
CD 

i 



M 



Si 
CO 
<«-! 


-13 
be 

a 

co 

H-3 


Displacement in Cubic Inches 
for One Stroke of One Plunger. 


Ordinary Strokes per Minute 
of One Plunger. 


Cubic Inches delivered by Both 
Plungers at Stated Number 
of Strokes per Minute. 


Water Delivered by Both 
Plungers at a Mean of 
the Ordinary Strokes 
per Minute. 


Diameter of Pipes 
in Inches. 


PRICE. 


Cubic 
Inches. 


Gallons. 


a" 

3 
on 

2V2 


GO 

S3 
c« 

-a 

X 

3 


S3 



S3 
CO 

I 


a? 
bO 

-a 


CO 

s 

% 


144 to 1 


12 


1 


12 


9-4 


25 to 70 


470 to 1,316 


893 


3-9 




64 to 1 


12 


i# 


12 


21.2 


25 to 70 


1,060 to 2,968 


2,014 


8.7 


2% 


3 


1/2 


I 




36 to I 


12 


2 


12 


37-7 


25 to 70 


1,885 to 5,278 


3,581 


15-5 


2^ 


3 


2 


I* 




23 to I 


12 


^ 


12 


58.9 


25 to 70 


2,945 to 8,246 


5,595 


24.2 


1V2 


3 


2 


*tf 




16 to I 


12 


3 


12 


84.8 


25 to 70 


4,240 to 11,872 


8,056 


34-9 


2^ 


3 


2^ 


*% 




11. 7 to 1 


12 


s% 


12 


"5-4 


25 to 70 


5,770 to 16,156 


10,963 


47-5 


2/2 


3 


2% 


2 




9 to 1 


12 


4 


12 


150.8 


25 to 70 


7,540 tO 21,112 


i4,3 2 6 


62.0 


2% 


3 


3 


2 




49 to 1 


14 


2 


12 


37-7 


25 to 70 


1,885 to 5,278 


3,58i 


15-5 


3 


4 


2 


«tf 




31.3 to 1 


14 


2^ 


12 


58.9 


25 to 70 


2,945 to 8,246 


5,595 


24.2 


3 


4 


2 


itf 




21.7 to I 


14 


3 


12 


84.8 


25 to 70 


4,240 to 11,872 


8,056 


34-9 


3 


4 


2^ 


1/2 




16 to I 


14 


z% 


12 


"5-4 


25 to 70 


5,770 to 16,156 


10,963 


47-5 


3 


4 


2/2 


2 




12.2 tO I 


14 


4 


12 


150.8 


25 to 70 


7,540 tO 21,112 


I 4,3 26 


62.0 


3 


4 


3 


2 




9.6 to I 


14 


4^ 


12 


190.8 


25 to 70 


9,540 to 26,712 


18,126 


78.5 


3 


4 


4 


2^ 




7.8 to I 


14 


5 


12 


235.6 


25 to 70 


11,780 to 32,984 


22,382 


96.9 


3 


4 


4 


2^ 




28.4 to I 


16 


3 


12 


84.8 


25 to 70 


4,240 to 11,872 


8,056 


34-9 


3 


4 


2^ 


1% 




20.9 to I 


l6 


3^ 


•12 


"5-4 


25 to 70 


5,770 to 16,156 


10,963 


47-5 


3 


4 


2/2 


2 




16 to I 


16 


4 


12 


150.8 


25 to 70 


7,540 tO 21,112 


I 4,3 2 6 


62.0 


3 


4 


3 


2 




12.6 to I 


16 


4^ 


12 


190 8 


25 to 70 


9,540 to 26,712 


18,126 


78.5 


3 


4 


4 


2^ 




10.2 to I 


l6 


5 


12 


235.6 


25 to 70 


11,780 to 32,984 


22,382 


96.9 


3 


4 


4 


^A 




8.4 to I 


l6 


5^ 


12 


285.1 


25 to 70 


14,255 to 39,914 


27,084 


117. 2 


3 


4 


5 


3 




7.1 to I 


16 


6 


12 


339-3 


25 to 70 


16,965 to 47,502 


3 2 ,233 


*39-5 


3 


4 


5 


3 




36 to I 


l8 


3 


12 


84.8 


25 to 70 


4,240 to 11,872 


8,056 


34-9 


3M 


5 


2/2 


1% 




26.4 to I 


l8 


3V2 


12 


115. 4 


25 to 70 


5,770 to 16,156 


10,963 


47-5 


3/2 


5 


2^ 


2 




20.2 to I 


18 


4 


12 


150.8 


25 to 70 


7,540 tO 21,112 


14,326 


62.0 


3^2 


5 


3 


2 




16 to I 


18 


4^ 


12 


190.8 


25 to 70 


9,540 to 26,712 


18,126 


78.5 


3H 


5 


4 


2/2 




12.9 to I 


l8 


5 


12 


235.6 


25 to 70 


11,780 to 32,984 


22,382 


96.9 


3H 


5 


4 


2^ 




10.7 to I 


l8 


5/ 2 


12 


285.1 


25 to 70 


14,255 to 39,914 


27,084 


117. 2 


3^ 


5 


5 


3 




9 to 1 


18 


6 


12 


339-3 


25 to 70 


16,965 to 47,502 


3 2 ,233 


*39-5 


3^ 


5 


5 


3 





Note. — In a duplex pump the number of gallons delivered per minute is found by multiplying the displace- 
ment of one plunger by twice ihe number of strokes. 



88 



DUPLEX STEAM PUMPS. 



co 






tt 






W 








T3 




< 


c 




X 






o 


IT. 




w 


a, 




> 


c 
o 




J 


nd 




< 


(U 




> 


S-. 


t^» 


1 


3 


w> 


H 




T3 


o 


t/; 

c3 


C3 


& 




io 


K 


t/3 

bo 


H 


a 


a, 


HH 


<1J 


CJ 


£ 


in 
"3 


t/3 




C 


a; 


Cu 


3 

o 


't/3 


£ 


£ 


o 




o 


J-- 




£ 


o 


w 


TJ 


li. 


tt 






D 


y3 




CO 


rO 




CO 


o 




K 






0. 


S 




X 


1) 

C/3 




W 






J 


H 




a. 






ID 






O 











BARR PUMPING ENGINE COMPANY. 



89 



PRESSURE PUMPS OF 18 INCHES STROKE. 



These pumps are specially fitted for heavy pressures. The movement of each steam-valve is controlled by 
the piston of the opposite cylinder, transmitted across the framing of the pump to each valve-rod respectively. 
This mcvement is always certain in its action. Its entire freedom from supplemental valves, ports, and other 
complications makes it the most desirable valve-gear known ; and, as the valve of one cylinder is actuated and 
controlled by the piston of the opposite cylinder, no dead points can occur in the stroke ; consequently, the pump 
can be started at any time with absolute certainty. The water-ends have outside connected double-acting 
plungers, with external adjustable stuffing-box glands. The valve and seats are carefully designed for the work 
required of them. The delivery of water is at all times constant and uniform. 

These pumps can be made suitable for any pressure from 500 to 2500 pounds. 



Ratio Steam 
to Water. 


-§ 

a 
S 

d 

CO 

C4-I 

O 

*H 

03 

s 

3 

18 


S) 

£3 
t-. 

e*-i 
O 
t-t 

<D 

S 
3 

4 




co 


.a 

"&> 

a 


t-A 
18 


Displacement in Gallons for 
One Stroke of One Plunger. 




1 
s 

t-. *"" 

&g> 

« a 

S 
iz a 

coo 

cS 

a 
■■3 

S-. 




Gallons Delivered by Both 
Plungers at Stated Number 
of Strokes per Minute. 


Gallons Delivered by Both 
Plungers at a Mean of the 
Ordinary Strokes per Minute. 


Diameter of Pipes 
in Inches. 


PRICE. 


a 

aS 
CO 

3'A 


a 

X 

5 


a 




a 

CO 

3 




fc>C 

S-. 
03 

-a 


3 
2 


20.2 to I 


.98 


20 to 65 


39 t0 I2 7 


83 




16 to 1 


18 


4 l A 


l8 


1.24 


20 to 65 


49 to 161 


105 


lA 


5 


4 


2^ 




12.9 to 1 


18 


5 


l8 


i-53 


20 to 65 


61 to 199 


130 


3% 


5 


4 


2/2 




10.7 to I 


18 


sA 


l8 


1-85 


20 to 65 


74 to 240 


i57 


3A 


5 


5 


3 




9 to 1 


18 


6 


l8 


2.20 


20 to 65 


88 to 286 


187 


iA 


5 


5 


3 




7 7 to 1 


18 


ey 2 


l8 


2.58 


20 to 65 


i°3 to 335 


219 


3% 


5 


5 


3 




6.6 to 1 


18 


7 


l8 


2.99 


20 to 65 


120 to 389 


254 


3% 


5 


6 


4 




25 to 1 


20 


4 


18 


.98 


20 to 65 


39 to I2 7 


83 


3% 


5 


3 


2 




19.7 to 1 


20 


aA 


l8 


1.24 


20 to 65 


49 to 161 


105 


3A 


5 


4 


2^ 




16 to 1 


20 


5 


l8 


i-53 


20 to 65 


61 to 199 


130 


3A 


5 


4 


2M 




13.2 to 1 


20 


5A 


l8 


1.85 


20 to 65 


74 to 240 


i57 


3% 


5 


5 


3 




1 1 . 1 to 1 


20 


6 


l8 


2.20 


20 to 65 


88 to 286 


187 


3^ 


5 


5 


3 




9.4 to 1 


20 


ey 2 


l8 


2.58 


20 to 65 


103 to 335 


219 


3% 


5 


5 


3 




8.1 to 1 


20 


7 


l8 


2.99 


20 to 65 


120 to 389 


254 


3^ 


5 


6 


4 




7.1 to I 


20 


7 l A 


l8 


3-44 


20 to 65 


138 to 447 


292 


3^ 


5 


6 


4 




6.2 to I 


20 


8 


l8 


3-9 1 


20 to 65 


156 to 508 


332 


3% 


5 


6 


4 




30.2 to I 


22 


4 


18 


.98 


20 to 65 


39 to 127 


83 


4 


6 


3 


2 




23.9 to I 


22 


\A 


l8 


1.24 


20 to 65 


49 to 161 


105 


4 


6 


4 


2^ 




19.2 to I 


"22 


5 


18 


i-53 


20 to 65 


61 to 199 


130 


4 


6 


4 


2^ 




16 to I 


22 


5A 


18 


1.85 


20 to 65 


74 to 240 


157 


4 


6 


5 


3 




13.4 to I 


22 


6 


18 


2.20 


20 to 65 


88 to 286 


187 


4 


6 


5 


3 




11. 4 to 1 


22 


ey 2 


18 


2.58 


20 to 65 


103 to 335 


219 


4 


6 


5 


3 




9.8 to I 


22 


7 


18 


2.99 


20 to 65 


120 to 389 


254 


4 


6 


6 


4 




8.6 to 1 


22 


7 l A 


l8 


3-44 


20 to 65 


138 to 447 


292 


4 


6 


6 


4 




7.2 to I 


22 


8 


18 


3-9 1 


20 to 65 


156 to 508 


332 


4 


6 


6 


4 




36 to I 


24 


4 


l8 


.98 


20 to 65 


39 to 127 


83 


4 


6 


3 


2 




28.4 to I 


24 


aA 


18 


1.24 


20 to 65 


49 to 161 


105 


4 


6 


4 


2}4 




23 to I 


24 


5 


l8 


x -53 


20 to 65 


61 to 199 


130 


4 


6 


4 


*A 




19 to I 


24 


5A 


18 


1.85 


20 to 65 


74 to 240 


i57 


4 


6 


5 


3 




16 to I 


24 


6 


18 


2.20 


20 to 65 


88 to 286 


187 


4 


6 


5 


3 




13.6 to I 


24 


6% 


18 


2.58 


20 to 65 


103 to 335 


219 


4 


6 


5 


3 




1 1. 7 to 1 


24 


7 


l8 


2.99 


20 to 65 


120 to 389 


254 


4 


6 


6 


4 




10.2 to 1 


24 


7% 


18 


3-44 


20 to 65 


138 to 447 


292 


4 


6 


6 


4 




9 to I 


24 


8 


18 


3.91 


20 to 65 


156 to 508 


332 


4 


6 


6 


4 




Note. — In 
ment of one p 


a d 

unge 


iplex 
r by 


pun 
twic< 


ip the num 

: the numbc 


ber of gallons < 
r of strokes. 


delivered per m 


inute is founc 


by r 


nultij 


)lyinj 


l the 


displace- 



9 o 



DUPLEX STEAM PUMPS. 



CO 






g 






W 






ffl 






£ 






< 


LO 




X 






o 


a 




w 


o 




> 






J 


03 




< 


t/J 

3 




> 

1 


t/5 




H 


C3 




O 






ft. 




<0 


X 


s 


<u 


H 


w 


m 


HH 


tJ 


„ 


£ 


o 


m 
N 




a, 




a. 


a 


<+h 


^ 


o 


o 


s 


rG 


m 


D 


£ 


u 

o 


cu 




|z< 


W 


<c 




tf 


42 




D 


d 

c3 




CO 


O 




CO 


a 




W 


s 

3 




& 


&. 




ft. 


0J 

t/J 




X 


H 




w 






J 






ft, 






D 






Q 








1 



BARR PUMPING ENGINE COMPANY. 



91 



PRESSURE PUMPS OF 24 INCHES STROKE. 



These pumps are specially fitted for heavy pressures. The movement of each steam-valve is 
controlled by the piston of the opposite cylinder, transmitted across the framing of the pump to 
each valve-rod respectively. This movement is always certain in its action. Its entire freedom 
from 'supplemental valves, ports, and other complications makes it the most desirable valve-gear 
known; and, as the valve of one cylinder is actuated and controlled by the piston of the oppo- 
site cylinder, no dead points can occur in the stroke ; consequently, the pump can be started at 
any time with absolute certainty. The water-ends have outside connected double-acting plungers, 
with external adjustable stuffing-box glands. The valves and seats are carefully designed for 
the work required of them. The delivery of water is at all times constant and uniform. 

These pumps can be made suitable for any pressure from 500 to 2500 pounds. 



Ratio Steam 
to Water. 


c© 

a 
"£> 

a 

o3 
a> 

CO 


t- 

«S 

a 
s 

s 


1-1 

<x> 

so 
a 

_E3 

t- 
■3 

o3 

E* 

O 
Fh 

a 

s 


M 

u 

CO 


-g 

S3 
CD 

1-4 


Displacement in Gallons for 
One Stroke of One Plunger. 


1 

S 

S P 
cube 

CO --H 

M&* 

J§ 
coo 

S-. 
OS 

>-. 




Gallons Delivered by Both 
Plungers at Stated Number 
of Strokes per Minute. 


Gallons Delivered by Both 
Plungers at a Mean of the 
Ordinary Strokes per Minute. 


Diameter of Pipes 
in Inches. 


PRICE. 


a 

CD 
CO 

4 


1 

m 
6 




si 
CO 

3 


& 

s- 
03 
,3 
C3 
CO 

S 

2 


36.0 to I 


24 


4 


24 


1.30 


20 to 60 


52 to 156 


104 


23.0 to I 


24 


5 


24 


2.04 


20 to 60 


82 to 245 


163 


4 


6 


4 


2% 




16.0 to I 


24 


6 


24 


2-93 


20 to 60 


117 to 352 


234 


4 


6 


5 


3 




1 1. 7 to 1 


24 


7 


24 


3.99 


20 to 60 


160 to 479 


3*9 


4 


6 


6 


4 




9.0 to I 


24 


8 


24 


5.22 


20 to 60 


209 to 626 


418 


4 


6 


6 


4 




7.1 to 1 


24 


9 


24 


6.60 


20 to 60 


264 to 792 


528 


4 


6 


7 


5 




5.7 to 1 


24 


10 


24 


8.xs 


20 to 60 


326 to 978 


652 


4 


6 


7 


5 




18.7 to 1 


26 


6 


24 


2-93 


20 to 60 


117 to 352 


234 


5 


7 


5 


3 




13.7 to I 


26 


7 


24 


3-99 


20 to 60 


160 to 479 


319 


5 


7 


6 


4 




10.5 to 1 


26 


8 


24 


5.22 


20 to 60 


209 to 626 


418 


5 


7 


6 


4 




8.3 to 1 


26 


9 


24 


6.60 


20 to 60 


264 to 792 


528 


5 


7 


7 


5 




7.4 to I 


26 


10 


24 


8.15 


20 to 60 


326 to 978 


652 


5 


7 


7 


5 




21.7 to I 


28 


6 


24 


2-93 


20 to 60 


117 to 352 


234 


5 


7 


5 


3 




16.0 to I 


28 


7 


24 


3-99 


20 to 60 


160 to 479 


3*9 


5 


7 


6 


4 




12.2 tO I 


28 


8 


24 


5.22 


20 to 60 


209 to 626 


418 


5 


7 


6 


4 


• 


9.6 to I 


28 


9 


24 


6.60 


20 to 60 


264 to 792 


528 


5 


7 


7 


5 




7.8 to I 


28 


10 


24 


8.15 


20 to 60 


326 to 978 


652 


5 


7 


7 


5 




6.4 to I 


28 


11 


24 


9.86 


20 to 60 


394 to 1 183 


789 


■ 5 


7 


8 


6 




5.4 to I 


28 


12 


24 


11.74 


20 to 60 


470 to 1409 


939 


5 


7 


8 


6 




25.0 to I 


30 


6 


24 


2 -93 


20 to 60 


117 to 352 


234 


6 


8 


5 


3 




18.3 to I 


3° 


7 


24 


3-99 


20 to 60 


160 to 479 


3*9 


6 


8 


6 


4 




14.0 to I 


30 


8 


24 


5.22 


20 to 60 


209 to 626 


418 


6 


8 


6 


4 




1 1 . 1 to I 


30 


9 


24 


6.60 


20 to 60 


264 to 792 


528 


6 


8 


7 


5 




9.0 to I 


3° 


10 


24 


8.15 


20 to 60 


326 to 978 


652 


6 


8 


7 


5 




7.4 to I 


3° 


11 


24 


9.86 


20 to 60 


394 to 1 183 


789 


6 


8 


8 


6 




6.2 to I 


30 


12 


24 


11.74 


20 to 60 


470 to 1409 


939 


6 


8 


8 


6 





Note.— In a duplex pump the number of gallons delivered per minute is found by multiplying the displace- 
ment of one plunger by twice the number of strokes. 



9 2 



DUPLEX STEAM PUMPS. 



CO 

w 
m 

2 

< 

o 

W 
> 

< 
> 

H 
O 

a. 
W 

H 



a 

§ 

a. 
w 

D 

CO 
CO 

a. 

X 
-H 

a, 

D 
Q 



vO 

a, 

o 

o 

m 

■~ 

.S° 

T3 






T3 

C 

O 



H3 

-t— ' 

c 

en 

a 



H 






3 
cr 1 






c 

Q 




CO 

Ot 

X 
(O 

w 
(73 



BARR PUMPING ENGINE COMPANY. 



93 



PRESSURE PUMPS OF 36 INCHES STROKE. 

These pumps are specially fitted for heavy pressures. The movement of each steam-valve is controlled by 
the piston of the opposite cylinder, transmitted across the framing of the pump to each valve-rod respectively. 
This movement is always certain in its action. Its entire freedom from supplemental valves, ports, and other 
complications makes it the most desirable valve-gear known ; and, as the valve of one cylinder is actuated and 
controlled by the piston of the opposite cylinder, no dead points can occur in the stroke ; consequently, the pump 
can be started at any time with absolute certainty. The water-ends have outside connected double-acting 
plungers, with external adjustable stuffing-box glands. The valves and seats are carefully designed for the work 
required of them. The delivery of water is at all times constant and uniform. 

These pumps can be made suitable for any pressure from 500 to 1500 pounds. 



Ratio Steam 
to Water. 


Si 
<D 

">, 

3 
03 

& 

CO 

CM 



(H 

CD 

m 

S 

<3 
26 


bo 

a 
a 

p- 

<x> 


t-t 
<x> 

8 
6 


M 



S-. 
CO 


J3 
bo 
S3 
3 


S-c 


S3 S 

gg 

c§^ 

"-I a> 

.2<§ 


Si fe 

<D ■—• 
CO 

[>»«« 

Jl 
g 

'■3 

Si 




Gallons Delivered by Both 
Plungers at Stated Number 
of Strokes per Minut'. 


Gallons Delivered by Both 
Plungers at a Mean of the 
Ordinary Strokes per Minute. 


Diameter of Pipes 
in Inches. 


PRICE. 


a 

CO 


3 

S3 

7 


d 





CO 


bo 

Si 
si 

-a 

s 


18.7 to I 




36 


4.41 


20 to 50 


176 to 441 


308 


5 


5 


3 




13.7 to I 


26 


7 


36 


6.00 


20 to 50 


240 to 600 


420 


5 


7 


6 


4 




10.5 to 1 


26 


8 


36 


7.84 


20 to 50 


314 to 784 


549 


5 


7 


6 


4 




8.3 to I 


26 


9 


36 


9.92 


20 to 50 


397 to 992 


694 


5 


7 


7 


5 




6.7 to I 


26 


10 


36 


12.25 


20 to 50 


490 to 1225 


857 


5 


7 


7 


5 




5-5 to 1 


26 


11 


36 


14.82 


20 to 50 


593 to 1482 


io 37 


5 


7 


8 


6 




4.6 to 1 


26 


12 


36 


17.64 


20 to 50 


706 to 1764 


1235 


5 


7 


8 


6 




12.2 to I 


28 


8 


36 


7.84 


20 to 50 


314 to 784 


549 


5 


7 


6 


4 




9.6 to I 


28 


9 


36 


9.92 


20 to 50 


397 to 992 


694 


5 


7 


7 


5 




7.8 to I 


28 


10 


36 


12.25 


20 to 50 


490 to 1225 


857 


5 


7 


7 


5 




6.4 to I 


"28 


11 


36 


14.82 


20 to 50 


593 to 1482 


1037 


5 


7 


8 


6 




5.4 to I 


28 


12 


36 


17.64 


20 to 50 


706 to 1764 


1235 


5 


7 


8 


6 




14.0 to I 


3° 


8 


36 


7.84 


20 to 50 


314 to 784 


549 


6 


8 


6 


4 




11. 1 to I 


3° 


9 


36 


9.92 


20 to 50 


397 to 992 


694 


6 


8 


7 


5 




9.0 to I 


30 


10 


36 


12.25 


20 to 50 


490 to 1225 


857 


6 


8 


7 


5 




7.4 to I 


30 


11 


36 


14.82 


20 to 50 


593 to 1482 


!037 


6 


8 


8 


6 




6.2 to 1 


3° 


12 


36 


17.64 


20 to 50 


706 to 1764 


1235 


6 


8 


8 


6 




16.0 to I 


3 2 


8 


36 


7.84 


20 tO 50 


314 to 784 


549 


6 


8 


6 


4 




12.6 to I 


3 2 


9 


36 


9.92 


20 to 50 


397 to 992 


694 


6 


8 


7 


5 




10.2 to I 


3 2 


10 


36 


12.25 


20 to 50 


490 to 1225 


857 


6 


8 


7 


5 




8.4 to I 


3 2 


11 


36 


14.82 


20 to 50 


593 to 1482 • 


1037 


6 


8 


8 


6 




7.1 to I 


3 2 


12 


36 


17.64 


20 to 50 


706 to 1764 


1235 


6 


8 


8 


6 




18.0 to I 


34 


8 


36 


7.84 


20 to 50 


314 to 784 


549 


8 


10 


6 


4 




14.2 to I 


34 


9 


36 


9.92 


20 to 50 


397 to 992 


694 


8 


10 


7 


5 




11. 5 to 1 


34 


10 


36 


12.25 


20 to 50 


490 to 1225 


857 


8 


10 


7 


5 




9-5 to 1 


34 


11 


36 


14.82 


20 to 50 


593 to 1482 


J °37 


8 


10 


8 


6 




8.0 to 1 


34 


12 


36 


17.64 


20 to 50 


706 to 1764 


i 2 35 


8 


10 


8 


6 




20.2 to I 


36 


8 


36 


7.84 


20 to 50 


314 to 784 


549 


8 


10 


6 


4 




16.0 to I 


36 


9 


36 


9.92 


20 to 50 


397 to 992 


694 


8 


10 


7 


5 




12.9 to I 


36 


10 


36 


12.25 


20 to 50 


490 to 1225 


857 


8 


10 


7 


5 




10.7 to I 


36 


11 


36 


14.82 


20 to 50 


593 to 1482 


io37 


8 


10 


8 


6 




9.0 to I 


36 


12 


36 


17.64 


20 to 50 


706 to 1764 


1235 


8 


10 


8 


6 





Note. — In a duplex pump the number of gallons delivered per minute is found by multiplying the displace- 
ment of one plunger by twice the number of strokes. 



94 



DUPLEX STEAM PUMPS. 



VERTICAL SINKING PUMP. 




BARR PUMPING ENGINE COMPANY. 



95 



VERTICAL SINKING PUMPS. 

The design on the opposite page represents a sinking pump of the 
double-acting bucket and plunger pattern, so arranged that the pump 
may be operated by suspending it from overhead, or it may be attached 
to the timbering in the mine. 

This pump is very compact, occupying but little room in the 
shaft, is easily handled and under perfect control, requiring but little 
attendance. 

The relative size of the bucket and plunger is given in the table 
below ; the proportions of the two are such as to give a continuous 
stream from the discharge. 

The pump is fitted with a removable composition lining. The valves 
are easy of access ; the movement of the steam-valve is positive, making 
it one of the most compact and desirable sinking pumps now offered. 

There are no bends in the suction-pipe, which extends vertically 
downward from the bottom of the pump. The water-cylinder is so 
arranged that the discharge-pipe bolts to it with a horizontal flange, 
so that no turns or elbows are had in the discharge. 



CO 

tt 

CD 

-CJ 

"P. 

CD 

a 

ea 

CD 

eo 

C|-C 

o 

J-. 
CO 

CD 

a 

3 


Diameter. 


oa 

CD 

o 
s=l 

C3 

I 

CO 


J-c 

CD 
PU 

CO 

El 

o 

13 

O . 

CD 

d^ 

.H o 

El CO 

CD 

a 

CD 

CD 

ca 

P-. 

CO 


a 

CO 

CD 
CD 
P=< . 

si. 
^* p* 

CO 

"5 

CO 

El 



13 




Diameter of Pipes in Inches. 


PRICE. 


O 

bo 

EI 

s- 
p. 


CD 

CD 

pa 

S-. 
CD 

Ss 

o 

l-J 


a" 

03 

CD 

CO 


i 

Jp 

H 


d 



§ 

CO 


CD 

be 

3 

-a 

CD 

<3 


8 
9 

IO 

9 

IO 
12 

12 

14 

14 
16 

16 
18 

20 


5 
5 

5 

6 
6 
6 

7 
7 

8 
8 

IO 
IO 
IO 


7 
7 
7 

8^ 
8^ 
8^ 

IO 
IO 

WA 


12 
12 
12 

12 
12 

18 

18 

18 
18 

18 

18 

18 


1.02 
1.02 
1.02 

i-47 
i-47 
1-47 

3.00 
3.00 

3-9i 
3-9 1 

6.12 
6.12 
6.12 


102 
102 
102 

147 
147 
147 

300 
300 

39 1 

39i 

612 

612 
612 


2 

2 
2 

2 

3 


I 5* 
2 

2 

2 
2 

2^ 

2^ 

3 

3 

3 

3 

3H 

4 


4 
4 
4 

5 

5 
5 

6 
6 

6 
6 

8 
8 
8 


3 
3 
3 

4 
4 
4 

5 
5 

5 
5 

7 
7 
7 





Other Sizes and Combinations to Order. 



9 6 



DUPLEX STEAM PUMPS. 




DUPLEX MINE-PUMP. 



PISTON PATTERN, WITH REMOVABLE LINING. 

These pumps are extensively used in quarries, surface excavations, 
and mines where the depth does not exceed 250 feet. These pumps are 
fitted with removable gun-metal linings, so arranged that the linings 
may be partially turned in the water-cylinders to present a new or un- 
worn surface underneath the piston. The detail of the lining is shown 
on page 14. The pistons are adapted for the use of Tuck's or other 
fibrous packing. Valves are specially selected for mine service. 



These pumps can be fitted with compound steam-ends, as illustrated on page 54. 
For list of sizes, see page 55. 



PARR PUMPING ENGINE COMPANY. 



97 



DUPLEX MINE-PUMP. 



PISTON PATTERN, WITH REMOVABLE LINING. 



These pumps are specially adapted for mines where the water is 
free from acid but contains more or less gritty matter. 

Each pump-barrel is furnished with a heavy gun-metal lining, held 
in place by bolts inside of the port line, so as to offer no obstruction to 
the flow of water. 

These linings can be partially turned in place to present new wear- 
ing surfaces, and when completely worn can be easily removed and new 
ones substituted. 



a 
;=: 

S 
3 
■S 

OQ 

*~i 

O 

CO 
CD 

e 
s 


© 

DO 
CD 

"3 

o 

S-c 
CD 


M 

o 

Si 

GO 

O 

■B 

bo 

§ 


Displacement in Gallons for 
One Stroke of One Piston. 


Ordinary Strokes per Minute 
of One Piston. 


Gallons Delivered by Both 
Pistons at Stated Number 
of Strokes per Minute. 


Gallons Delivered by Both 
Pistons at 100 Strokes 
per Minute. 


Diameter of Pipes 
in Inches. 


PRICE. 


Per 

Minute. 


Per 
Hour. 


Per 

24 Hours. 


s 
3 

GO 


1 

-a 
M 

2 


c 


5 


CD 

bo 

s 

CO 

s 

4 


8 


6 


12 


i-47 


75 to I2 5 


220 to 367 


294 


17,640 


4 2 3,3 6 ° 


I# 




IO 


6 


12 


i-47 


75 to 125 


220 to 367 


294 


17,640 


4 2 3,3 ° 


2 


2% 


5 


4 




12 


6 


12 


i-47 


75 to 125 


220 to 367 


294 


17,640 


4 2 3,3 ° 


2^ 


3 


5 


4 




IO 


7 


12 


2.00 


75 to 125 


300 to 500 


400 


24,000 


576,000 


2 


■2V1 


6 


5 




12 


7 


12 


2.00 


75 to 125 


300 to 500 


400 


24,000 


576,000 


2% 


3 


6 


5 




14 


7 


12 


2.00 


75 to 125 


300 to 500 


400 


24,000 


576,000 


3 


4 


6 


5 




IO 


8 


12 


2.6l 


75 to 125 


391 to 652 


522 


S 1 ^ 20 


751,680 


2 


2 K 


6 


5 




12 


8 


12 


2.6l 


75 to 125 


391 to 652 


522 


31,320 


751,680 


2 ^ 


3 


6 


5 




14 


8 


12 


2.6l 


75 to 125 


391 to 652 


522 


3 X ,3 2 ° 


751,680 


3 


4 


6 


5 




16 


8 


12 


2.6l 


75 to 125 


391 to 652 


522 


31,320 


751,680 


3 


4 


6 


5 




12 


IO 


12 


4.08 


75 to 125 


612 to 1020 


816 


48,960 


1,175,040 


2^ 


3 


8 


7 




14 


IO 


12 


4.08 


75 to 125 


612 to 1020 


816 


48,960 


1,175,040 


3 


4 


8 


7 




16 


10 


12 


4.08 


75 to 125 


612 to 1020 


816 


48,960 


1,175,040 


3 


4 


8 


7 




18 


IO 


12 


4.08 


75 to 125 


612 to 1020 


816 


48,960 


1,175,040 


3^2 


5 


8 


7 




20 


IO 


12 


4.08 


75 to 125 


612 to 1020 


816 


48,960 


1,175,040 


3% 


5 


8 


7 





Note. — In a duplex pump the number of gallons delivered per minute is found by multiplying the displace- 
ment of one piston by twice the number of strokes. 

An extra charge will be made for bed-plates. Pumps can be brass-fitted at a slight advance over the regular 
prices given above. 

Sizes are designated by giving the diameter of steam-cylinders, the diameter of water-pistons, and the length 
of stroke; thus, 8 x 6 x 12 for the first pump in the table, and similarly for any other size. 

Jg®^ The above pumps are designed for any service in which the water-pressure does not exceed 150 pounds 
per square inch. 



9 8 



DUPLEX STEAM PUMPS. 




Size, 14 x 7 x 12. 



DUPLEX MINE-PUMP, WITH CENTRALLY-PACKED 

PLUNGERS. 



The duplex mine-pump illustrated above is growing steadily in 
favor for the removal of water from mines. The steam-end is fitted with 
our well-known valve motion described on page 4. 

The water-end of the pump is of the packed plunger type, with 
stuffing-boxes arranged in the centre of the pump. These stuffing- 
boxes are adapted for the use of any of the several forms of fibrous 
packing now offered in the market. 

The plungers are ordinarily made of cast-iron; they are easily lubri- 
cated, and as these plungers never come in contact with any other 
portion of the pump, they are less liable to cutting or uneven wear when 
handling gritty water than ordinary plunger pumps. 

These pumps are all double-acting, and, by reason of their com- 
pactness, very little space is occupied in the mine. 



BARR PUMPING ENGINE COMPANY. 



99 



DUPLEX MINE-PUMPS OF 12 INCHES STROKE. 

These pumps are of the centrally-packed plunger type, and es- 
pecially adapted for mines, quarries, etc. As all the wear of the pump 
comes on the fibrous packing, which is easily renewable, their efficiency 
is easily and cheaply maintained. 

These pumps are ordinarily built as shown on the opposite page. 
Whenever desired, we can furnish any of the sizes tabulated below with 
compound steam-ends, as illustrated on page 54. 



s- 


">> 

i 

£ 


>-. 

-S 

a 


09 

S-. 

<o 
fc>X> 

c 

1 


Sh 

03 

a 
s 


a? 


*-. 


-g 

ho 

d 
<o 

-=1 


Displacement in Gallons for 
One Stroke of One Plunger. 


Ordinary Strokes per Minute 
of One Plunger. 


Gallons Delivered by Both 
Plungers at Stated Number 
of Strokes per Minute. 


Gallons Delivered by Both 
Plungers at 100 Strokes 
per Minute. 


Diameter of Pipes 
in Inches. 


PRICE. 


Per 

Minute. 


Per 
Sour. 


Per 
24 Hours. 


i 

m 
CO 


-a 




fee 


S 


8 


4 


12 


■65 


75 to 125 


98 to 163 


130 


7,800 


187,200 


i/ 2 


2 


4 


4 




10 


4 


12 


.65 


75 to 125 


98 to 163 


130 


7,800 


187,200 


2 


2^ 


4 


4 




12 


4 


12 


.65 


75 to 125 


98 to 163 


130 


7,800 


187,200 


2% 


3 


4 


4 




8 


5 


12 


1.02 


75 to 125 


153 to 255 


204 


12,240 


293,760 


*JS 


2 


5 


4 




10 


5 


12 


1.02 


75 to 125 


153 to 255 


204 


12,240 


293,760 


2 


2^ 


5 


4 




12 


5 


12 


1.02 


75 10125 


153 to 255 


204 


12,240 


293,760 


2^ 


3 


5 


4 




10 


6 


12 


I-47 


75 to 125 


220 to 367 


294 


17,640 


423,36° 


2 


2^ 


6 


4 




12 


6 


12 


i-47 


75 to 125 


220 to 367 


294 


17,640 


423,360 


2% 


3 


6 


4 




14 


6 


12 


i-47 


75 to 125 


220 to 367 


294 


17,640 


423,36° 


3 


4 


6 


4 




16 


6 


12 


i-47 


75 to 125 


220 to 367 


294 


17,640 


423,360 


3 


4 


6 


4 




12 


7 


12 


2.00 


75 to 125 


300 to 500 


400 


24,000 


576,000 


2^ 


3 


7 


6 




14 


7 


12 


2.00 


75 to 125 


300 to 500 


400 


24,000 


576,000 


3 


4 


7 


6 




16 


7 


12 


2.00 


75 to 125 


300 to 500 


400 


24,000 


576,000 


3 


4 


7 


6 




18 


7 


12 


2.00 


75 to 125 


300 to 500 


400 


24,000 


576,000 


3% 


5 


7 


6 




14 


8 


12 


2.61 


75 to 125 


391 to 652 


522 


3!,32o 


751,680 


3 


4 


8 


6 




16 


8 


12 


2.61 


75 to 125 


391 to 652 


522 


31,320 


751,680 


3 


4 


8 


6 




18 


8 


12 


2.61 


75 to 125 


391 to 652 


522 


3^320 


751,680 


3% 


5 


8 


6 




20 


8 


12 


2.61 


75 to 125 


391 to 652 


522 


31,320 


751,680 


3^ 


5 


8 


6 




12 


10 


12 


4.08 


75 to 125 


612 to 1020 


816 


48,960 


1,175,040 


2% 


3 


8 


7 




14 


10 


12 


4.08 


75 to 125 


612 to 1020 


816 


48,960 


1,175,040 


3 


4 


8 


7 




16 


10 


12 


4.08 


75 to 125 


612 to 1020 


816 


48,960 


1,175,040 


3 


4 


8 


7 




18 


10 


12 


408 


75 to 125 


612 to 1020 


816 


48,960 


i,i75,°4° 


3 l A 


5 


8 


7 




20 


10 


12 


4.08 


75 to 125 


612 to 1020 


816 


48,960 


1,175,040 


3% 


5 


8 


7 





Note. — In a duplex pump the number of gallons delivered per minute is found by multiplying the displace- 
ment of one plunger by twice the number of strokes. 

An extra charge will be made for bed-plates. Pumps can be brass- fitted at a slight advance over the regular 
prices given above. 

Sizes are designated by giving the diameter of steam-cylinders, the diameter of water-plungers, and the length 
of stroke ; thus, 8 x 4 x 12 for the first pump in the table, and similarly for any other size. 



IOO 



DUPLEX STEAM PUMPS. 



o 

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x 

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2 



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w 

D 
Q 




BARR PUMPING ENGINE COMPANY. 



IOI 



DUPLEX MINE-PUMPS OF 18 INCHES STROKE. 

These pumps are designed for high lifts and for bad water. The 
plungers have end stuffing-boxes, as shown in the illustration on the 
opposite page. The water-end has been designed with special reference 
to renewal of parts, when used with acid water. All parts are made to 
gauges and strictly interchangeable. 

Any of the sizes tabulated below can be fitted with compound 
steam-ends, as illustrated on pages 54 and 56. 

For list of sizes of condensing apparatus see page 63. 



1 






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c£ 




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bo 

n 






» 


Pi 






1 
go 


t-c 




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M 


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CM 




C/D 


£ S 


O 








M 


J-. 


O 


a g 


<a 


<D 


_a 


S 53 


S 


1 


bO 

a 


•^§ 










« 


« 


>-3 





12 


7 


18 


3.00 


14 


7 


18 


3.00 


16 


7 


18 


3.00 


18 


7 


18 


3.00 


14 


8 


18 


3-9 1 


16 


8 


18 


3-9 1 


18 


8 


18 


3-9 1 


20 


8 


18 


3-9 1 


22 


8 


18 


3-9 1 


16 


9 


18 


5.00 


18 


9 


18 


5.00 


20 


9 


18 


5.00 


22 


9 


18 


5.00 


24 


9 


18 


5.00 


26 


9 


18 


5.00 


18 


10 


18 


6.12 


20 


10 


18 


6.12 


22 


10 


18 


6.12 


24 


10 


18 


6.12 


26 


10 


18 


6.12 


28 


10 


18 


6.12 


3° 


10 


18 


6.12 



5 

g 



CO o 

s 

a 
3- 



o 90 
o 90 
o 90 
o 90 

o 90 
090 
090 
090 
o 90 

090 
o 90 
090 
090 
090 
090 

o 90 
090 
090 
090 
090 
090 
090 



"si 

<© o 
bo J3 

JPh o 



CS 



300 to 540 

300 to 540 

300 to 540 

300 to 540 

391 to 704 

391 to 704 

391 to 704 

391 to 704 

391 to 704 

500 to 900 

500 to 900 

500 to 900 

500 to 900 

500 to 900 

500 to 900 

6l2 tO II02 
6l2 tO II02 
6l2 tO II02 
6l2 tO II02 
6l2 tO II02 

612 tO 1 102 
612 tO 1 102 



Gallons Delivered by Both 
Plungers at a Mean of 
the Ordinary Strokes per 
Minute. 



Per 


Per 


Minute. 


Hour. 


420 


25,200 


420 


25,200 


420 


25,200 


420 


25,200 


547 


32,820 


547 


32,820 


547 


32,820 


547 


32,820 


547 


32,820 


700 


42,000 


700 


42,000 


700 


42,000 


700 


42,000 


700 


42,000 


700 


42,000 


857 


S I »4 2 ° 


857 


5M2o 


857 


5 I »420 


857 


51,420 


857 


51,420 


857 


51,420 


857 


51,420 



Per 
24 Hours. 



604,800 
604,800 
604,800 
604,800 

787,680 
787,680 
787,680 
787,680 
787,680 

008 ,000 
008,000 
008,000 
008,000 
008,000 
008 ,000 



1 

1,2 

1,2 

1,2 

1,2 

1,234 



134,080 
134,080 
134,080 
^,080 
j,o8o 
U°8o 
,080 



Diameter of Pipes 
in Inches. 



3 
3 
3^ 

3 

3 

3 l A 

3 l A 

4 

3 

3/2 

3% 

4 

4 

5 

3% 
3% 
4 
4 

5 
5 
6 









d 


d 





-a 






E* 


w 


00 


3 


7 


4 


7 


4 


7 


5 


7 


4 


8 


4 


8 


5 


8 


5 


8 


6 


8 


4 


9 


5 


9 


5 


9 


6 


9 


6 


9 


7 


9 


5 


10 


5 


10 


6 


10 


6 


10 


7 


10 


7 


10 


8 


10 



PRICE. 



Note. — In a duplex pump the number of gallons delivered per minute is found by multiplying the displace- 
ment of one plunger by twice the number of strokes. 

An extra charge will be made for bed-plates. Pumps can be brass-fitted at a slight advance over the regular 
prices given above. 

Sizes are designated by giving the diameter of steam-cylinders, the diameter of water-plungers, and the length 
of stroke ; thus, 12x7x18 for the first pump in the table, and similarly for any other size. 



102 



DUPLEX STEAM PUMPS. 



^iiiHIIIliiiiiniiininiiiiiilii 



O 

& 
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CO 

CO 

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CO 

CD 

Q 
< 

CO 

D 

a, 

I 

w 

2 



X 

w 
a. 

Q 




BARR PUMPING ENGINE COMPANY. 



103 



DUPLEX MINE-PUMPS OF 24 AND 36 INCHES STROKE. 



This design of mine-pump is made up of a number of parts which are exact duplicates 
of each other, the object being to facilitate the replacing of parts corroded by acid water, and 
without disturbing such parts as are not so corroded. 

Any of the pumps tabulated below can be fitted with compound steam-ends, shown on 
page 56. For list of sizes of condensing apparatus, see page 63. 



CO 

Eh 

CD 

a 

5 
-S 
co 


Eh 

CD 

a 

s 


CO 

Eh 

CD 

6>D 

O 
_£* 
a, 

i 

CD 



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a> 

a 

c<J 
5 


CD 

O 
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CO 

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ja 

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a 

CD 

-3 


Eh 

eg C 

co W> 

« s 

a 

og 

5° 
_^ 

t3 jo 

a g 
|£ 

&§ 


Ordinary Strokes par Minute 
of One Plunger. 


Gallons Delivered by Both 
Plungers at Stated Number 
of Strokes per Minute. 


Gallons Delivered by Both 
Plungers at a Mean of 
the Ordinary Strokes per 
Minute. 


Diameter of Pipes 
in Inches. 


PRICE. 


1 

Per 

Minute. 


Per 
Hour. 


Per 
24 Hours. 


a 

ce 

CD 

co 


CO 

cd 

-a 

K 


J 

co 


CD 

be 

Eh 

d 

■a 

s 


16 


8 


24 


5.22 


40 to 80 


417 to 834 


626 


37,560 901,440 


3 

J 


4 


8 


6 




18 


8 


24 


5.22 


40 to 80 


417 to 834 


626 


37,56o 


901,440 


*% 


5 


8 


6 




20 


8 


24 


5.22 


40 to 80 


417 to 834 


626 


37,56o 


901,440 


sV* 


5 


8 


6 




22 


8 


24 


5.22 


40 to 80 


417 to 834 


626 


37,56o 


901 ,440 


4 


6 


8 


6 




24 


8 


24 


5.22 


40 to 80 


417 to 834 


626 


37,560 


901 ,440 


4 


6 


8 


6 




16 


9 


24 


6.60 


40 to 80 


528 to 1056 


792 


47,52o 


1,140,480 


3 


4 


9 


8 




18 


9 


24 


6.60 


40 to 80 


528 to 1056 


792 


47,52o 


1,140,480 


3V 2 


5 


9 


8 




20 


9 


24 


6.60 


40 to 80 


528 to 1056 


792 


47,52o 


1,140,480 


Z% 


5 


9 


8 




22 


9 


24 


6.60 


40 to 80 


528 to 1056 


792 


47,52o 


1,140,480 


4 


6 


9 


8 




24 


9 


24 


6.60 


40 to 80 


528 to 1056 


792 


47,520 


1,140,480 


4 


6 


9 


8 




26 


9 


24 


6.60 


40 to 80 


528 to 1056 


792 


47,52o 


1,140,480 


5 


7 


9 


8 




18 


10 


24 


8.15 


40 to 80 


652 to 1304 


978 


58,680 


1,308,320 


3^ 


5 


10 


8 




20 


10 


24 


8.15 


40 to 80 


652 to 1304 


978 


58,680 


1,308,320 


3/2 


5 


10 


8 




22 


10 


24 


8.15 


40 to 80 


652 to 1304 


978 


58,680 


1,308,320 


4 


6 


10 


8 




24 


10 


24 


8.15 


40 to 80 


652 to 1304 


978 


58,680 


I ,3°8,320 


4 


6 


10 


8 




26 


10 


24 


8.15 


40 to 80 


652 to 1304 


978 


58,680 


1,308,320 


5 


7 


10 


8 




28 


10 


24 


8.15 


40 to 80 


652 to 1304 


978 


58,680 


1,308,320 


5 


7 


10 


8 




3° 


10 


24 


8.15 


40 to 80 


652 to 1304 


978 


58,680 


i j3 c8 ,3 2 ° 


6 


8 


10 


8 


( 


24 


9 


36 


9.92 


20 to 50 


397 to 992 


694 


41,640 


999,360 


4 


6 


9 


8 




26 


9 


36 


9.92 


20 to 50 


397 to 992 


694 


41,640 


999,360 


5 


7 


9 


8 




28 


9 


36 


9.92 


20 to 50 


397 to 992 


694 


41,640 


999,36o 


5 


7 


9 


8 




24 


10 


36 


12.25 


20 to 50 


490 to 1225 


857 


51,420 


1,234,080 


4 


6 


10 


8 




26 


10 


36 


12.25 


20 to 50 


490 to 1225 


857 


51,420 


1,234,080 


5 


7 


10 


8 




28 


10 


36 


12.25 


20 to 50 


490 to 1225 


857 


51,420 


1,234,080 


5 


7 


10 


8 




30 


10 


36 


12.25 


20 to 50 


490 to 1225 


857 


51,420 


1,234,080 


6 


8 


10 


8 




24 


12 


36 


17.64 


20 to 50 


706 to 1764 


1235 


74,100 


1,778,400 


4 


6 


12 


10 




26 


12 


36 


17.64 


20 to 50 


706 to 1764 


1235 


74,100 


1,778,400 


5 


7 


12 


10 




28 


12 


36 


17.64 


20 to 50 


706 to 1764 


1235 


74,100 


1,778,400 


5 


7 


12 


10 




3° 


12 


36 


17.64 


20 to 50 


706 to 1764 


1235 


74,100 


1,778,400 


6 


8 


12 


10 




32 


12 


36 


17.64 


20 to 50 


706 to 1764 


1235 


74,100 


1,778,400 


6 


8 


12 


10 




36 


12 


36 


17.64 


20 to 50 


706 to 1 764 


1235 


74,100 


1,778,400 


8 


10 


12 


10 





Note. — In a duplex pump the number of gallons delivered per minute is found by multiplying the displace- 
ment of one plunger by twice the number of strokes. 

An extra charge will be made for bed-plates. Pumps can be brass-fitted at a slight advance over the regular 
prices given above. 

Sizes are designated by giving the diameter of steam-cylinders, the diameter of water-plungers, and the length 
of stroke ; thus, 16 x 8 x 24 for the first pump in the table, and similarly for any other size. 



104 



DUPLEX STEAM PUMPS. 



o 

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0) 



T3 
ID 
H 



BARR PUMPING ENGINE COMPANY. 



105 




AUTOMATIC FEED-PUMP AND RECEIVER. 

For collecting the water of condensation in steam-heating coils and automatically return- 
ing it to the boiler. This apparatus is self-contained on a heavy cast-iron bed-plate. The 
receiver is proven to 100 pounds pressure, the copper float being tested to the same pressure. 
The pump will be fitted with metal valves for boiling water. 



No. 


Size of Pump. 


Capacity per Minute. 


Heating Surface 
Drained. 


PRICE. 


1 
2 
3 
4 
5 


3x2 x 4 
4x2 x 5 
4x3 x 5 
5 x 3% x 6 
6x4 x 6 


10 gallons. 

15 " 
25 " 
40 " 
80 


5,000 sq. feet. 
10,000 " 
15,000 " " 
25,000 " " 
50,000 " 





Other Sizes and Combinations Made to Order. •■ 



n 



1 06 



DUPLEX STEAM PUMPS. 




Size, 16 x 36. 



ARTESIAN-WELL PUMPS. 

The steam-end of this pump is mounted on a heavy cast-iron bed- 
plate securely bolted to a brick foundation at the mouth of the well, the 
design being such as to permit the steam-cylinder sliding one side of 
the well, for the easy withdrawal of the plunger-rod and pump-piston. 

The steam-cylinder is fitted with double ports at each end, and 
furnished with adjusting-valves for controlling the action of the steam 



BARR PUMPING ENGINE COMPANY. 



107 



both above and below the piston. This method of adjustment is simple 
and never-failing in its operation, no matter what the depth of the well 
may be. 

The valve-gear is simple and positive in its operation, and under 
perfect control, the up and down strokes being both uniform and 
regular at all times. 

This pump is built with a differential plunger, the diameter of 
which is suited to that of the working-barrel with which it is connected. 
The effect is to deliver one-half of the water on the up stroke and the 
other half on the down stroke of the plunger, making it a double-acting 
pump, and without producing any buckling strains on the pump-rod. 

A delivery-chamber is furnished each steam-end. This chamber is 
so designed that it can be entirely removed from the base-plate without 
disturbing the latter on its foundation, thus permitting the entire with- 
drawal of the pipe, plunger-rod, and pump from the well when required 
for examination or repairs. 

STEAM-ENDS FOR ARTESIAN-WELL PUMPS. 



STEAM-CYLINDER. 


PIPES. 




DIFFERENTIAL PLUNGER. 








PRICE. 




Diameter. Stroke. 


Steam. 


Exhaust. 


Diameter 
Pump- Piston. 


Diameter 
Diff. Plunger. 


6 


24 


1 


*X 




2^8 


,11 
T r5 


7 


24 


1 


*tf 




2% 


2 


8 


24 


itf 


2 




3 1 / 


2l 5 5 


10 


24 


*v* 


2 




3% 


oil 

2 TB 


12 


24 


1% 


2^ 




4* 

4% 


3A 

3 3 /8 


8 


36 


I# 


2 




5V, 


3 is 


10 


36 


** 


2 




sU 


4 h 


12 


36 


1% 


2^ 




6% 


4K 


14 


36 


2 


3 




7% 


5^ 


16 


36 


2 


3 




w 


6K 


18 


36 


2^ 


3^ 




9K 


6% 



All steam-ends will be fitted with differential plungers at the prices quoted above. 
24-inch stroke pump speed from 1 to 40 strokes per minute. 
36-inch stroke pump speed from 1 to 30 strokes per minute. 

AIR-CHAMBERS. 

In all cases where the water is to be lifted to a considerable height, 
it is well to provide the pump with an air-chamber; this should be as 
near the pump as convenient. A good arrangement is to have a Tee 
bolted to the pump-delivery flange, and then attach an air-chamber to 
its upper branch. A check-valve or gate-valve can also be added, if 
thought desirable. 



io8 



DUPLEX STEAM PUMPS. 





_e&l 




No. i. 



No. 2. 



No. 3. 



No. 4. 



The water-ends for artesian-well pumps are shown in the accom- 
panying sectional elevations. The working-barrels are all made of hard 
cast brass, accurately bored and fitted with packed pistons. 

Three styles are shown : 
No. 1. Water-end is fitted with ball-valves made of hard brass, accu- 
rately turned so as to be perfectly spherical. The foot- valve 
cage fits into a bored conical socket at the bottom of the 
working-barrel. This cage is made with a bale, so that it can 
be removed by a hook from the top. Each piston is also fitted 
with a ball-valve. Cup leather packings held in place by brass 
rings accurately fitting both the piston and the working-barrel, 
held in place by a screw-collar as shown in the engraving, 
complete a design which more nearly meets all the require- 
ments of artesian-well service than, perhaps, any other design. 
The bottom of the working-barrel casting is fitted with a pipe- 
thread, so that a piece of wrought-iron pipe can be added to 



BARR PUMPING ENGINE COMPANY. 



109 



the length of the pump for lifting water from a greater depth 
and shortening the main-pipe and pump-rod if thought de- 
sirable. 

No. 2. Water-end is fitted with ball-valves and cages, the same as No. 1 ; 
the principal difference being in the substitution of a piston 
adapted for the use of Tuck's packing instead of cup leathers. 

No. 3. Water-end is fitted with flat valves, of either rubber or metal, as 
shall appear best suited to the work. This piston is adapted 
for the use of Tuck's packing. It is guided centrally by a 
brass ring, and further guided by a brass screw-collar holding 
all in place from the bottom. 

No. 4. Water-end is not an artesian working-barrel, but is a design for 
open wells. With the exception of the lower valve, everything 
about this pump is the same as for corresponding sizes of 
artesian-well pumps. 



WATER-ENDS FOR ARTESIAN-WELL PUMPS. 



Prices for Water- Ends, Nos. 1, 2, and 3. 



PUMP. 


PRICE. 


Inside 
Diameter 
Wrought- 
Iron Pipe. 


Pump Rod 
Wrought- 
Iron Pipe. 


Gallons 

p8r 
Stroke. 


Diameter of Well- 
Casing. 


Diameter 

Delivery 

Pipe. 


PRICE OF CONNECTIONS. 


Diameter. 


Stroke. 


Inside. 


Outside. 


Pump Pipe 
Per Foot. 


Pump Rod 
Per Foot. 


Brass 

Coupling. 

Each. 


2% 


24 




2% 


Yx 


.46 


4 


4 1 / 


1* 


#0.44 


$0.04 


$1.10 


2% 


24 




3 


1 


.67 


4^ 


4K 


*% 


.58 


.09 


1 


90 


3# 


24 




3% 


1 


.86 


5 


554 


2 


.70 


.09 


1 


90 


Z% 


24 




4 


itf 


1. 14 


6# 


6% 


2 


.85 


.12 


2 


80 


\V± 


24 




\% 


itf 


1.48 


6* 


6S/ 8 


2 


1. 00 


.12 


2 


80 


4K 


24 




5 


^A 


1.84 


6fg 


7 


2% 


1.20 


.22 


3 


25 


5% 


24 




6 


i# 


2.25 


7^8 


8 


*% 


1.20 


.22 


3 


25 


5% 


24 




6 


2 


2.70 


81/ 


8^8 


3 


1.65 


.28 


4 


50 


2% 


36 




3 


1 


•93 


4^ 


A% 


*K 


•58 


.09 


1 


90 


3% 


36 




3% 


1 


1.29 


5 


5X 


2 


.70 


.09 


1 


90 


3 3 A 


36 




4 


xtf 


1.72 


6/ 


6% 


2 


■85 


.12 


2 


80 


4 1 / 


36 




A 1 /* 


i 1 / 


2.22 


6*/ 


6tt 


2 


1. 00 


.12 


2 


80 


4 3 /i 


36 




5 


i# 


2.76 


6^ 


7 


2% 


1.20 


.22 


3 


25 


sti 


36 




6 


i# 


3-38 


7% 


8 


2% 


1.20 


.22 


3 


25 


5% 


36 




6 


2 


4-05 


81/ 


m 


3 


1.65 


.28 


4 


50 


6% 


36 




7 


2 


5.58 


9 


9 s /z 


3^ 


2.00 


.28 


4 


50 


7% 


36 




8 


2 


735 


10 


16% 


3^ 


2.75 


.28 


4 


50 


w 


36 




9 


2 


9-38 


11 


"K 


4 


3-7o 


.28 


4 


50 


9% 


36 ' 




10 


2^ 


11.64 


12 


xa# 


4 


4-75 


•44 


5 


75 



No. 4. Water-ends will be provided with suitable flanges for securing either to side timbers in the well, or 
with a flanged base for bolting to a timber platform. 



no 



DUPLEX STEAM PUMPS. 



ASH PUMP-RODS 

With wrought-iron screw and socket make the most satisfactory con- 
nection between the differential plunger at the top and the water-piston 
at the bottom of the well. We make four sizes of rods for the several 
water-ends, as below. 




i ]/ 2 inch Ash Rods for pumps to 3%^ x 36 inches. 



m 

2 
2^ 



4 3 4 x 36 
6}( x 36 

9% x 3 6 



BRASS COUPLINGS. 



When pump-rods are constructed of wrought-iron pipe, they are 
usually fitted with brass couplings similar in 
design to the annexed engraving. 

The coupling is tapped at each end to 
receive the wrought-iron pipe, and is further 
provided with an annular guide to steady the 
pump- rod within the wrought-iron well-pipe, 
and thus relieve the pump-rod of any strains 
upon the joints incident to the buckling of 
the rod when running rapidly on the down 
stroke. 

One such coupling should be provided 
for each length of pipe, say every 16 feet. 

Prices of these couplings are given in 
the table of water-ends. 




BARR PUMPING ENGINE COMPANY. 



Ill 



DIRECT-ACTING VACUUM-PUMPS, 



SINGLE PATTERN. 




This is a type of pump largely used in connection with steam-heating 
coils in manufactories, public buildings, etc. They are well suited for 
sugar-works on plantations, for chemical works, glue factories, condensed 
milk factories, and all industries and processes requiring a vacuum. 

These pumps are very compact, thoroughly well made, the water- 
cylinders are fitted with a removable brass lining, brass piston-rod and 
piston, valves fitted with a water-seal, the piston-rod passes through 
double stuffing-boxes with water-seal between, so that air cannot leak 
back into the main cylinder of the pump. 



DIAMETER. 


Length of 
Stroke. 

Inches. 


DISPLACEMENT. 


Diameter of Pipes in Inches. 


REMARKS. 


Steam- 
Cylinders. 

Inches. 


Pump- 
Cylinders. 

Inches. 


Cubic Inches 

per 

Stroke. 


Cubic Feet at 

100 Feet 
Piston Speed. 


1 







GO 


bo 
(-. 
aS 


4 
6 
6 
6 
8 

IO 
IO 
12 


5 
6 

7 

8 

IO 
12 

16 


8 
8 

12 
12 
12 
12 

18 

18 


i57 

226 

462 

600 

942 

1356 

2772 

3618 


27 

39 

53 

69 

109 

157 
213 
278 


2 
8 

4 
3 


3 
4 


I 
I 

^A 
1% 


H 

1 

2 
2 
2 


3 
4 

: 

6 

8 
8 


3 
4 
5 
5 
6 

7 
8 
8 





Larger sizes and other combinations to order. 



These pumps can be supplied with pan bed-plates fitted with tapped pipe-openings for 
conveying any drippings to an underground drain. Bedplates can be furnished with an orna- 
mental grating fitting into the top of the pan, if so desired. We recommend that all vacuum- 
pumps be supplied with them. Prices quoted on application. 



112 



DUPLEX STEAM PUMPS. 




BARE PUMPING ENGINE COMPANY. H3 



STEAM PUMPS FOR DOUBLE AND TRIPLE EFFECT. 

The illustration on the opposite page represents a pump designed 
for triple-effect apparatus. The steam-end is fitted with hand starting- 
gear and cataract for controlling the movement of the piston operating 
the main valve. The valve-gear is simple in construction and positive in 
its action. The piston-rod in the steam-cylinder attaches to a cross-head, 
and is made of steel ; on the other side of this cross-head a brass 
piston-rod extends into the first pump. The inside head is fitted with a 
water-seal, so that no air can pass through the stuffing-box into the 
valve-chambers of the pump. The cross-head is so constructed that 
parallel rods extend on either side of the first water-end so as to operate 
the second pump without carrying the piston-rod through the back head 
of the first pump ; this second cross-head is fitted so that an extension 
of the parallel rods is carried on either side of the second cylinder and 
attaches to a cross-head for operating the third pump. These parallel 
rods are guided on the first and second cylinders. By this arrangement 
any one of the three water-ends may be disconnected, and in the event 
that the pistons should require examination or repair they can be taken 
out without disturbing the pump on its foundations. 

These pumps are of the piston pattern, with removable composition 
linings so arranged that they may be partially turned so as to bring 
fresh surfaces in contact with the bottom of the piston, should there be 
unusual wear or cutting in that portion of the lining. The valves can 
be made of hard vulcanite or brass, as may be preferred ; they are fitted 
with a water-seal, so as to insure tightness. Hand-hole plates are pro- 
vided on the suction and delivery side of the pump, so that any valve 
may be examined, removed, and replaced without drawing the charge 
from the cylinders of the pumps. These water-ends will be provided 
with suction-openings on both sides of the pump and provided with a 
blank flange, so that either side may be shut off. The delivery-elbows 
will be drilled so that the flange will face quartering, or can be drilled to 
lead in any direction that may be desired. 

Although the illustration shows a triple-effect pump, we make them 
double-effect, and are prepared to submit designs, specifications, and 
prices for any number of effects in any size of apparatus. 



Crank and Fly-Wheel Combination Pumps in any size, suited to the 
above service, made to order. Designs and prices on application. 

8 



114 



DUPLEX STEAM PUMPS. 




-\ 



BARR PUMPING ENGINE COMPANY. 



"5 



DUPLEX CRANK AND FLY-WHEEL VACUUM-PUMP. 

Duplex Vacuum-Pumps, of the design shown on the opposite page, 
are probably the most satisfactory in their operation of any type of 
pump yet introduced for vacuum purposes in sugar-making, and other 
processes which require the highest attainable efficiency. 

The cranks are set at right angles to each other, so that the " pull 
on the vacuum" is practically continuous throughout a complete revolu- 
tion of the crank-shaft. No dead points occur in the revolution, so that 
the pump will start at any position of the steam-pistons. 

As this type of pump has a measured stroke, a certain displace- 
ment is had for each revolution of the crank-shaft ; its efficiency is, 
therefore, as near perfect as is possible in any type of machine. This 
design of vacuum-pump is more economical in the use of steam than 
any direct-acting pump, by reason of the stored-up energy in the rim of 
the wheel ; it also permits the employment of a cut-ofT or expansion- 
valve in the steam-cylinder, should such ,an economy of steam be 
thought desirable. 

The vacuum-cylinder is fitted with a cast-brass lining ; the valve- 
plates are also made of cast brass, and are so arranged that they may 
be entirely removed from the pump without disturbing any of the main 
castings. 



CD 

.9 

1 

8 
a 

CD 

So 

O 

Si 

CD 

i 

sS 

5 


s 

E* 

P-. 

1 

Si 

O 

Ch 

CD 

CD 

a 

s 




Si 

So 



"5b 

s=l 

►2 


Si 

"2 

i . 

s s 

=3 2 

S-J2 

*o 

[»* 

=S 

C9 


Cubic Feet Displacement at 50 
Revolutions per Minute. 


SIZE OF PIPES. 


PRICE. 


S 

CtS 
CO 

So 

*% 

2 

2 

2^ 

3 

3 

3 


GO 

=3 
OS 

M 

w 


* 
g 

of 


CD* 

6»D 
Si 

ctj 

s 


6 

7 

8 

9 

1 10 

12 

14 
16 
16 


8 
10 
12 

14 
16 
18 
20 
22 

24 


12 
12 
18 
18 

24 

24 

24 
24 
24 


i-39 

■ 2.18 

4.71 

6.42 

11. 17 

14.14 

17-45 
21.12 
25.12 


69.50 
109.00 
235-50 
320.80 
558.50 
706.84 
872.80 
1,056.00 
1,256.00 


2 
2 

2 

2^ 

2^ 

3 
4 
4 

4 


4 

5 
6 

7 
8 

9 
10 
11 
12 


3 
4 
4 
5 
6 

7 
7 
8 
8 





*The diameters of both vacuum and discharge pipes may be changed to suit the requirement of a customer. 

The vacuum-cylinders will be adapted for either wet or dry process. 

Designs and estimates for other sizes and for any service will be furnished on application. 



n6 DUPLEX STEAM PUMPS. 



AIR-COMPRESSORS. 

We are prepared to furnish air-compressors adapted to both high 
and low pressures, embodying all the latest improvements, and adapted 
to both the wet and dry systems. The inlet- and delivery-valves are 
easy of access, the compression-cylinders are provided with water- 
jackets for absorbing the heat of compression. Compressors will be 
furnished with either horizontal or vertical engines, as shall best meet 
the requirements of the purchaser. 

These compressors can be fitted with receiving-tanks for the smaller 
sizes, making a compact, self-contained machine for moving thick liquids, 
acids, or for other purposes. 

Especial attention will be given to compressors subject to difficult 
transportation in mountainous districts, in which case parts will be made 
as small and as light as possible consistent with the service required 
of them. 

Designs and estimates furnished on application. 



GAS-COMPRESSORS. 

Gas-compressors specially designed for compressing ammonia gas 
for ice-making, cold storage, or other refrigerating service. 

These pumps are designed for pressures up to 250 pounds per 
square inch. The valves are readily accessible. Especial attention is 
paid to the stuffing-boxes, which are of unusual length and of special 
construction, with grating and reservoir for sealing-oil, with force-pump 
attached. The whole of the pump is submerged in a tank, through 
which a current of water passes in order to maintain an even tempera- 
ture of the working-barrel. 

These pumps are double-acting, and constructed with great care, 
and guaranteed to be equal in efficiency to the best compressors yet 
introduced. They will be fitted with either vertical or horizontal 
engines, and in any size suited to the requirements of ice-making, cold 
storage, etc. 

Designs and prices furnished on application. 



BARR PUMPING ENGINE COMPANY. 



117 




DUPLEX SUGAR-HOUSE PUMP WITH BALL-VALVES. 

This type of pump is specially adapted for handling hot or cold 
syrups, juices, or skimmings containing trash, chips, or shreds of cane. 
It is well suited to filter press-work. 



e* 

<P 

ft 

•J 

>-> 

a 
s 
& 

eo 

cm 



Si 
CD 

CD 

a 


. 
hi 

(*» 

S-. 
CD 

"el 

e«-i 
O 
V. 

O 

a 

03 


Length of Stroke. 


Gallons per Stroke of One 
Piston. 


CD 

"3 
a 

»i 

C^i CO 

CO Oh 
CD „ 

tH O 

COcm 

O 

| 

a 
<=> 


Gallons Delivered by Both 
Pistons at Stated Number 
of Strokes per Minute. 


Gallons Delivered by Both 
Pistons at a Mean of 
the Ordinary Strokes 
per Minute. 


Diameter of Pipes 
in Inches. 


PRICE. 


Per 

Minute. 


Per Hour. 


a 
J 

CO 


cS 

-a 

H 


a" 


CD 

S=» 
CO 


-a 

CD 

s 


4 
5 

6 

7 
7 


2% 

4 

4 
5 


5 

6 

6 

8 
8 


.10 
.21 

•33 

•43 

.68 


75 to 125 

75 to 125 

75 to 125 

75 to 125 
75 to 125 


15 to 30 

31 to 52 

49 to 82 

64 to 107 
102 to 170 


22 
42 

66 

86 
136 


1,320 
2,5*0 

3»9 6 ° 

5,160 
8,160 


H 

I 
I 

1% 


I 

2 
2 


2 

3 

3 
4 


2 
2 

3 





Note. — In a duplex pump the number of gallons delivered per minute is found by multiplying the displace- 
ment of one piston by twice the number of strokes. 

An extra charge will be made for bed-plates. Pumps can be brass-fitted at a slight advance over the regular 
prices given above. 



n8 



DUPLEX STEAM PUMPS. 



DUPLEX PETROLEUM-PUMPS . 

We can furnish these pumps in either the piston or plunger pattern. These 
pumps, when of the piston pattern, have the cylinders lined with brass and 
fitted with cup-leather packed pistons, brass piston-rods, brass valve-seats, 
with either brass valves or hard vulcanite suitable for oil, naphtha, and other 
petroleum products. 
















































J-H 


m 




£3 




0^2 

S © 

-° 2 


Gallons Delivered by Both 










J=l 


© 




*% 


S 


Pistons at a Mean of 


Diameter of Pipes 




rf 
>* 






3^ 


>- ^ 


the Ordinary Strokes 




in Inches. 






a 

-2 

CO 


S-. 




^a 


P-,tS 


is 


per Minute. 












o 


O 




CD CO cl, 

> 










PRICE. 














C<-4 

© 

I 


o 
J-. 

a 


CO 

O 


a 2 

O CO 

©-.el 

MO 


CO =*-, 
O 


(V, «J © 


Per 

Minute. 


Per Hour. 


a 

cS 


1 


a 



© 

=3 


§3 
cS 

-a 




'(=> 


« 


1-3 


1=1 


•0 


ci 






CO 


H 








3 


2 


4 


•05 


100 to 200 


10 to 20 


15 


900 


% 


I 


K 




4 


2^ 


5 


.10 


100 to 200 


20 to 40 


30 


1,800 


% 


I 


Ifc 


«5< 




4 


3 


5 


•15 


100 to 200 


30 to 60 


45 


2,700 


% 


I 


2 


xfc 




5 


3# 


6 


.21 


100 to 175 


42 to 74 


58 


3,480 


I 


*# 


2 


15* 




5 


4 


6 


•33 


100 to 175 


66 to 116 


9 1 


5,460 


I 


*% 


3 


2 




6 


3 


8 


.24 


100 to 150 


48 to 72 


60 


3,600 


I 


I* 


2 


1% 




6 


4 


8 


•43 


100 to 150 


86 to 130 


108 


6,480 


I 


^A 


3 


2 




6 


5 


8 


.68 


100 to 150 


136 to 204 


170 


10,200 


I 


*V2 


4 


2y 2 




8 


4 


IO 


•54 


75 to 125 


81 to 135 


108 


6,480 


"J* 


2 


3 


2 




8 


5 


IO 


•85 


75 to 125 


127 to 212 


170 


10,200 


I 1 ^ 


2 


4 


3 




8 


6 


IO 


1.22 


75 to 125 


183 to 305 


244 


14,640 


Ifc 


2 


4 


3 




IO 


7 


12 


2.00 


75 to 125 


300 to 500 


400 


24,000 


2 


2^ 


6 


5 




12 


7 


12 


2.00 


75 to 125 


300 to 500 


400 


24,000 


2^ 


3 


6 


5 




IO 


8 


12 


2.61 


75 to 125 


391 to 652 


522 


S 1 ^ 20 


2 


2% 


6 


5 




12 


8 


12 


2.61 


75 to 125 


391 to 652 


522 


S 1 ^ 20 


2^ 


3 


6 


5 . 




12 


IO 


12 


4.08 


75 to 125 


612 to 1020 


816 


48,960 


2^ 


3 


8 


7 




H 


IO 


12 


4.08 


75 to 125 


612 to 1020 


816 


48,960 


3 


4 


8 


7 





Other sizes and combinations made to order. 

Note.— -In a duplex pump the number of gallons delivered per minute is found by multiplying the displace- 
ment of one plunger by twice the number of strokes. 

An extra charge will be made for bed-plates. > 

Sizes are designated by giving the diameter of steam-cylinders, the diameter of water-pistons, and the length 
of stroke ; thus, 3 x 2 x 4 for the first pump in the table, and similarly for any other size. 



BARR PUMPING ENGINE COMPANY. 



II 9 




DUPLEX OIL-LINE PUMPS. 



These pumps are specially fitted for heavy pressures. The movement of each steam-valve is 
controlled by the piston of the opposite cylinder, transmitted across the framing of the pump to 
each valve-rod respectively. This movement is always certain in its action. Its entire freedom 
from supplemental valves, ports, and other complications makes it the most desirable valve-gear 
known ; and, as the valve of one cylinder is actuated and controlled by the piston of the oppo- 
site cylinder, no dead points can occur in the stroke ; consequently, the pump can be started at 
anytime with absolute certainty. The pump-ends have outside connected double-acting plungers, 
with external adjustable stuffing-box glands. The valves and seats are carefully designed for 
the work required of them. The delivery is at all times constant and uniform. 

These pumps can be made suitable for any pressure from 300 to 1000 pounds. 



Ml 
CO 

a 

a 
s 

CD 
CO 

O 
t- 
CO 

i 

3 


Diameter of Water-Plungers. 


CD 

O 
S-c 

co 

b»h 

O 

JO 

"So 
a 

cd 


J-t 

li 

13 SI 

a 
ao 

""' e*M 
O 

S3 

O -M> 

«co 

0- a 

CO 

(3 


"3 
a 

S-. *< 
M 

£ ® 
-S3 a 
to 

cS 

S3 

-3 

O 


Gallons Delivered by Both 
Plungers at Stated Number 
of Strokes per Minute. 


Gallons Delivered by Both 
Plungers at a Mean of 
the Ordinary Strokes 
per Minute. 


Diameter of Pipes 
in Inches. 


PRICE. 


Per 

Minute. 


Per Hour. 


a 

OS 

CD 

CO 


CO 

-a 
H 

63 

2^ 

3 

3 
4 

4 
4 

4 
5 

5 
6 

6 

7 
8 


a 



Q 
CO 

2^ 
2^ 

3 
3 

4 

4 

5 
5 

6 
6 

6 
6 
6 


CD 

bJD 

Km 

eg 

2 
2 

2^ 
2% 

3 
3 

4 
4 

4 
4 
4 


10 

12 

12 

14 

14 
l6 

16 
l8 

20 

2 4 

24 
26 

30 


3 
3 

4 
4 

5 
5 

6 

6 

7 
7 

8 
8 
8 


12 
12 

12 
12 

12 
12 

l8 
l8 

l8 
18 

24 
24 
24 


•37 
•37 

•65 
.65 

1.02 
1.02 

2.20 
2.20 

3.00 
3.00 

5.22 
5.22 
5.22 


25 to 70 
25 to 70 

25 to 70 

25 to 70 

25 to 70 
25 to 70 

20 to 65 
20 to 65 

20 to 65 
20 to 65 

20 to 60 
20 to 60 
20 to 60 


18 to 52 
18 to 52 

32 to 91 
32 to 91 

51 to 143 
51 to 143 

88 to 286 
88 to 286 

120 to 390 
120 to 390 

209 to 626 
209 to 626 
209 to 626 


35 

35 

62 
62 

97 
97 

187 
187 

255 

255 

418 
418 
418 


2,100 
2,100 

3,720 
3,720 

5,820 
5,820 

11,220 
11,220 

i5,3°° 

1 5,3oo 

25,080 
25,080 
25,080 


2 
2% 

2% 

3 

3 
3 

3 
3 l A 

3% 
4 

4 

5 
6 





Other sizes and combinations made to order. All sizes can be fitted with compound steam-ends. 

Note. — In a duplex pump the number of gallons delivered per minute is found by multiplying the displace- 
ment of one plunger by twice the number of strokes. 

An extra charge will be made for bed-plates. Pumps can be fitted with brass plungers at a slight advance 
over the regular prices. 

Sizes are designated by giving the diameter of steam-cylinders, the diameter of water-plungers, and the length 
of stroke ; thus, 10 x 3 x 12 for the first pump in the table, and similarly for any other size. 



120 



DUPLEX STEAM PUMPS. 



FLANGED ELBOWS. 




TWO HOLES UR 



Q = NO.OF HOLES. 
H r DiPirn.or holes. 



e^a- 



I— *H 



We have adopted as a standard radius two diameters of the pipe. 
Our patterns are so made that they may be lengthened, and for that 
reason dimensions C and D are given. The figures in the table repre- 
sent the shortest distances. In ordering flanged elbows the distance 
and the distance D may be increased, or both ; any change in either one 
of these two dimensions constitutes an extra. It is our practice in 
drilling to always have two holes up, as shown in the engraving. If, 
however, the elbow is to be placed on its side, then the two holes up 
will be at right angles to the position shown. 

These elbows are extra heavy, and intended for water-works service. 



Diameter. 
A 


Radius. 
B 


Centre to Face. 


Diameter 

of 
Flange. 

E 


Diameter 

of 
Bolt Circle. 

F 


Number 

of 

Bolt Holes 

G 


Diameter 

of 
Bolt Holes 

H 


BOLTS. 


PRICE. 




Diameter. 
J 


length. 

K 


c 


D 


4 


8 


8 


8 


9 


7% 


5 


H 


5 A 


2^8 




5 


10 


10 


10 


10 


W 


5 


li 


% 


2% 




6 


12 


12 


12 


11 


9 J A 


6 


H 


5 A 


2^8 




7 


14 


14 


14 


12 


IO# 


6 


if 


% 


2% 




8 


16 


16 


16 


J 3 


n# 


8 


13 
T5 


% 


2% 




IO 


20 


20 


20 


16 


13% 


8 


if 


% 


2% 




12 


24 


24 


24 


18 


15% 


10 


fa 


% 


3 




J 4 


28 


28 


28 


20 


18H 


12 


if 


% 


3 




16 


32 


32 


32 


22 


20^8 


14 


13 


% 


3% 




18 


36 


36 


36 


24 


22^ 


16 


15 
Tff 


% 


3% 




20 


40 


40 


40 


26 


24/8 


18 


if 


% 


3% 




22 


44 


44 


44 


28 


26% 


18 


if 


% 


4 




2 4 


48 


48 


48 


3° 


28^ 


20 


if 


% 


4 





BARR PUMPING ENGINE COMPANY. 



121 



FLANGED TEES. 




TWOHOLESl/P 



H = NO OF HOLES. 
J = 0/Rm.0FHOLES. 



--*-&&! 



r-L~ -\ 



The dimensions given in the table are for our standard work, and 
represent shortest distances. The distances and D can be lengthened 
to any extent either side of the centre line, so also can the distance E, 
the changes being charged as an extra. In drilling we always place the 
holes up, as shown in the engraving. If a tee is to be placed horizon- 
tally the two holes will still be up, and the drilling would be at right 
angles to the position shown in the engraving. 

These castings are extra heavy, and intended for water-works service. 



Diameter. 
A 


Face 

to 

Face. 

B 


Face to Centre. 


Diameter 

of 
Flange. 

F 


Diameter 

of 
Bolt Circle. 

G 


Number 

of 
Bolt Holes. 

H 


Diameter 

of 
Bolt Holes. 

J 


BOLTS. 


PRICE. 


Diameter. 
K 


Length. 

L 


c 


D 


E 


4 


14 


7 


7 


7 


9 


7# 


5 


11 


% 


2^8 




5 


16 


8 


8 


8 


10 


8# 


5 


H 


% 


2^8 




6 


16 


8 


8 


8 


11 


9K 


6 


11 


5 A 


*Vs 




7 


18 


9 


9 


9 


12 


IO# 


6 


15 


X 


2% 




8 


18 


9 


9 


9 


13 


"# 


8 


13 


% 


2^ 




IO 


22 


11 


11 


11 


16 


I3K 


8 


if 


V* 


2-K 




12 


24 


12 


12 


12 


18 


15% 


10 


H 


% 


3 




M 


26 


13 


J 3 


13 


20 


18/8 


12 


H 


Ya 


3 




16 


3° 


15 


15 


15 


22 


20j4 


J 4 


if 


% 


3H 




18 


3 2 


16 


16 


16 


24 


22}4 


16 


if 


% 


3H 




20 


36 


18 


18 


18 


26 


24^8 


18 


IS 
Tff 


y* 


3K 




22 


38 


J 9 


J 9 


*9 


28 


26% 


18 


IS 
TB 


% 


4 




24 


40 


20 


20 


20 


3° 


28/s 


20 


is 
TS 


% 


4 





122 



DUPLEX STEAM PUMPS. 



SUCTION OR DELIVERY TEES. 



B 

c — 



K u 



-*l 

l 
- -D ■* 



-Jl 



--f 




TWO HOLES UR 



J=NO.OFHOL£S. 
K=0l*M.OF MOLES. 



TWO 



L---N— -J — ^#— 




U--M-H 



S^v 



P= NO. OF HOLES. 
DlfiM.OFflOLES 



K--*-H 



This is a special tee arranged to go between two pumping-engines where there is not 
sufficient space to use elbows. The diameter A is that leading to the pump, the diameter E is 
that which connects to the main. The distance B is the shortest that we can make with our 
patterns, but may be increased in distance C or D, or both, to suit the needs of a customer. 
The distance F may also be lengthened. 







a 

C 






cd 




bo 

a 

a 

cm 

O 


CD 

«3 

"o 
pq 

O 


03 

'0 

w 

pa 


CO 

CD 

O 

w 


PQ 

<M 

O 




cd° 
be 

CD 

bo 

M 

cS 




CD 






CO 
CD 

"o 

pa- 
's 
pq 

■cm 


CO 

CD 

*c3 
H 

'0 
PQ 

4-4 




BOLTS. 


PRICE. 








o 
cd 
03 


8 

ft 




cd 

a 

o3 


C3 


cd 


M 

CP 

CD 
.1 


£-1 
CD 

1 


"a 


M 

<g 

i 


CD 
CD 

I 

L 



-a 
bo 
g 

M 


M 

CD 

~CD 

a 

.3 


1-. 

8 


CD 


CD 


%m 

s 

CD 

1 


bb 

a 

CD 




A 


B 


c 


D 


E 


F 


G 


H 


J 


K 


N 





P 


Q 


R 


s 




4 


16 


8 


8 


6 


8 


9 


7% 


5 


H 


H 


2% 


11 


9 x i 


6 


TB 


f* 


2fo 




5 


18 


9 


9 


7 


9 


10 


Btf 


S 


11 

TB 


% 


2% 


12 


IO# 


6 


TB 


fc 


2^ 




6 


18 


9 


9 


8 


9 


11 


9 1 / 


6 


11 
TB 


K 


2^8 


13 


xitf 


8 


13 
TB 


« 


23/ 




7 


22 


11 


11 


10 


11 


12 


i°K 


6 


13 
TB 


« 


2% 


16 


13% 


8 


13 
TB 


% 


23/ 




8 


24 


12 


12 


12 


12 


13 


«# 


8 


TB 


« 


23/ 


18 


15% 


10 


if 


% 


3 




IO 


26 


13 


13 


14 


13 


16 


13K 


8 


13 
TB 


34 


234 


20 


i8/ 8 


12 


13 
TB 


% 


3 




12 


32 


16 


16 


18 


16 


18 


15K 


10 


13 
TB 


# 


3 


24 


22^ 


16 


16 
TB 


% 


3Va 




14 


36 


18 


18 


20 


18 


20 


x8# 


12 


13 

TB 


3 X 


3 


26 


24H 


18 


15 
TB 


% 


3X 




16 


40 


20 


20 


24 


20 


22 


20j^ 


J 4 


13 
TB 


54 


3# 


30 


a8J4 


20 


TB 


n 


4 


' 



PARR PUMPING ENGINE COMPANY. 



123 



FLANGED CROSSES. 



[^_. c Jt . -_ D »| 



TWO HOLES UP. 



K = NO.OF HOLES. 




I t =oiflm.orwoLfs. 



The distances E and B represent our standard dimensions, and are 
the shortest distances we can furnish from our patterns. One or more 
of the dimensions marked 0, D, P, and G may be changed to suit any 
special conditions. Any changes from the standard given in the table 
will constitute an extra. It is our practice to drill crosses with two 
holes up, as shown in the engraving. If a cross is to lie horizontally 
the drilling will still be with two holes up, which will make them at 
right angles to the position shown in the engraving. 



a 
.5 


s 

eS 



to 

oS 


CO 

OD 





03 




a 

r* 

O 

eo 


OS 


CD 

1-4 

"3 

00 

O 

4? 
OP 
03 




be 

a 

Bj-I 

O 

g 

a 

<S 


OS 

pq 


«-. 

03 

a 

.5 


a? 
"o 

w 



a 




w 


PQ 

bjH 

O 
t, 
OD 
03 

a 

OS 


BOLTS. 


PBICB. 


1 


be 

a 
.3 


A 


B 


c 


D 


E 


F 


G 


H 


J 


K 


L 


M 


N 




4 


14 


7 


7 


14 


7 




7 


9 


7^ 


5 


H 


H 


2% 




5 


16 


8 


8 


16 


8 




8 


TO 


8 1 / 


5 


H 


H 


2^ 




6 


16 


8 


8 


16 


8 




8 


II 


9 l A 


6 


1 1 


H 


*K 




7 


18 


9 


9 


18 


9 




9 


12 


101/ 


6 


*§ 


X 


*% 




8 


18 


9 


9 


18 


9 




9 


13 


n# 


8 


H 


% 


2% 




10 


22 


11 


11 


22 


11 




11 


16 


13% 


8 


II 


X 


2y* 




12 


24 


12 


12 


24 


12 




12 


18 


15% 


10 


13 
TB 


% 


3 




14 


26 


13 


13 


26 


13 




13 


20 


i8/ 8 


12 


*f 


% 


3 




16 


30 


15 


15 


3° 


15 




15 


22 


2oy s 


14 


H 


% 


3% 




18 


32 


16 


16 


3 2 


16 




16 


24 


2214 


16 


if 


% 3% 




20 


36 


18 


18 


36 


18 




18 


26 


24K 


18 


15 
T5 


% 


3% 




22 


38 


19 


19 


38 


19 




J 9 


28 


26/ 8 


18 


IB 


y* 


4 




24 


40 


20 


20 


40 


20 




20 


3° 


28/8 


20 


is 


% 


4 





124 



DUPLEX STEAM PUMPS. 



COMBINED FLANGE AND BELL. 



TWO HOLES VR 




F* NO. OF HOLES. 
q= OlfW-OF HOLES 



k--J--*j 



The diameter of the flange corresponds to that p of our standard 
work ; the drilling also corresponds to our standard. The propor- 
tions of the bell are those which correspond to Eastern practice. The 
distance B can be varied to suit any particular case. 



Diameter. 


Length. 


Length 

of 

Bell. 


Diameter 

of 
Flange. 


Diameter 

of 
Bolt Circle. 


Number 

of 
Bolt Holes. 


Diameter 

of 
Bolt Holes. 


BOLTS. 


PRICE. 


Diameter. 


Length. 


A 


B 


c 


D 


E 


F 


G 


H 


J 




4 


12 


3 


9 


7* 


5 


11 

TB 


n 


2^ 




5 


14 


3 


10 


8# 


5 


11 

TB 


H 


2% 




6 


16 


3 


11 


9 1 / 


6 


11 

TB 


H 


2^! 




7 


18 


3 


12 


ip# 


6 


If 


% 


23/ 




8 


20 


3 


J 3 


ii# 


8 


TB 


X 


2^ 




IO 


22 


3 


16 


13% 


8 


if 


% 


2K 




12 


24 


3% 


18 


15% 


10 


TB 


X 


3 




14 


26 


3# 


20 


i8/ 8 


12 


13 
IB 


% 


3 




16 


28 


3% 


22 


2oYa 


14 


13 
TB 


% 


3 1 / 




18 


30 


3% 


24 


22^8 


16 


15 
TB 


% 


3# 




20 


32 


3% 


26 


24^ 


18 


15 
TB 


y* 


3% 




22 


34 


3% 


28 


26^ 


18 


15 

TB 


% 


4 




2 4 


36 


3% 


30 


28/ 8 


20 


15 
TB 


% 


4 





BARR PUMPING ENGINE COMPANY. 



125 



COMBINED FLANGE AND SPIGOT. 



'ZEZZZZZZZZZZZZZZZZZZZZZZZZZZZZOl 




TWOHIOLES UP. 



—m& 



i I 

t-H—\ 




£=NO. OFHOLZS, 

F= DWM. OFMOLES. 



These flanges correspond in diameter and drilling with our regular 
standard work. The distance B may be varied to suit the needs of any 
particular case. 







Diameter 

of 
Flange. 

c 


Diameter 
of 

Bolt Circle. 

D 


Number 

of 
Bolt Holes. 

E 


Diameter 

of 
Bolt Holes. 

F 


BOLTS. 


PRICE. 


Diameter. 
A 


Length. 
B 


Diameter. 
G 


Length. 
H 


4 
5 
6 

7 
8 

10 
12 

14 
16 
18 
20 
22 
24 


12 

14 
16 
18 
20 
22 
24 
26 
28 
30 

3 2 
34 
36 


9 
10 
11 
12 

13 

16 
18 
20 
22 

24 
26 
28 
3° 


81/ 
id/ 

13% 
I8J/8 

20J4 
22J/6 
24H 
26H 
28H 


5 
5 
6 
6 
8 
8 

10 
12 

14 
16 
18 
18 
20 


11 

16 

11 
TF 

11 
15 

13 
T5 

13 

Iff 

H 

il 
if 

15 
TS 

IB 

T5 

1 s 
T5 

1 S 
15 


H 

% 

% 
% 
X 

% 
% 

% 


2^8 
2% 

2^8 

*h 

3 
3 

3* 
3# 

3K 

4 

4 





126 



DUPLEX STEAM PUMPS. 



FLANGED PIPE. 



TWO HOLES UP. 




— -£^jiy|-— 



£= NO. OFHOLCS. 

F=o'fl^.orHotrs. 



«• — « — H 



The diameters of the flanges and the drilling correspond to our 
standard. The length B can be made of any length not exceeding 
io feet. The thickness of the pipes is based upon a head of 300 feet, 
or 150 pounds pressure, including the usual allowance for friction. 



Diameter. 
A 


Length. 
B 


Diameter 
of 

Flange. 

C 


Diameter 

of 
Bolt Circle. 

D 


Number 

of 
Bolt Holes. 

E 


Diameter 

of 
Bolt Holes. 

F 


BOLTS. 


PRICE. 


Diameter. 
G 


Length. 
H 


4 

5 
6 

7 
8 

10 
12 

14 
16 
18 
20 
22 
24 




9 
10 
11 
12 

13 
16 
18 
20 
22 
24 
26 
28 
30 


IO# 

I8H 

20^ 
22^ 

24/8 
26^ 
28/ 8 


5 
5 
6 
6 
8 
8 

10 
12 

14 
16 
18 
18 
20 


11 

T5 

11 
TS 

11 
TS 

TS 

H 

13 
TS 

if 
H 

13 

TS 

15 
TS 

15 

TS 

15 
TS 

15 
™ 


n 

5 A 
5 A 

% 
% 
% 

K 

% 

% 
% 
% 
% 


2% 
2% 
2^ 

2K 

2K 
3 
3 
sV, 

3*A 
3% 
4 
4 





PARR PUMPING ENGINE COMPANY. 



127 



PIPE-FLANGES. 




TWO HOLES UP 



D = NO. OF HOLES. 
E=Dlf\lA. OF HOLES. 



m&— 



H- -« - -*} 



These flanges are extra heavy, and are made of a diameter and 
number of holes suited to our standard work. These flanges are all cut 
in a lathe, so that the thread is always at right angles to the face, the 
taper of the thread in the flanges being guided by a taper attachment on 
the lathe, making a very much better flange for large work than those 
ordinarily had in supply depots. 



Diameter of 

Wrought-Iron 

Pipe. 


Diameter 

of 
Flange. 


Diameter 

0? 
Bolt Circle. 


Number 

of 
Bolt Holes. 


Diameter 

of 
Bolt Holes. 


BOLTS. 


PRICE. 


Diameter. 


Length. 


A 


B 


c 


D 


E 


F 


G 




1 


4 


3 


4 


9 

TB 


% 


2% 




1% 


4% 


3% 


4 


9 
TB 


% 


2K 




i 1 /* 


4% 


3 S A 


4 


9 
TB 


% 


2^ 




2 


5% 


4 l A 


4 


11 
TB 


% 


2% 




2% 


ey 2 


5 


4 


11 
TB 


H 


3 7 A 




3 


8 


6% 


4 


11 
15 


n 


3 7 A 




3 l A 


8% 


6K 


4 


11 
TB 


% 


3 7 A 




4 


9 


7H 


5 


1 1 
TB 


H 


aA 




4% 


9% 


1% 


5 


11 
T5 


% 


4% 




5 


10 


81/ 


5 


11 
TB 


5 A 


4 3 A 




6 


11 


9% 


5 


1 1 
TB 


H 


4% 




7 


12 


10K 


6 


13 
IB 


% 


4% 




8 


13 


"K 


8 


13 

its 


% 


5 




10 


16 


1 3% 


8 


13 
TS 


% 


5H 




12 


18 


i5% 


10 


13 
TB 


% 


6 





128 



DUPLEX STEAM PUMPS. 




T 



1 *- 



F= NO. or HOLES. 
omm.or HOLES* 



Nih 



AIR-CHAMBERS. 



The engraving on this page shows 
the general design adopted by us for air- 
chambers, the table giving our standard 
dimensions. These chambers are made 
of cast iron, and tested to 150 pounds 
per square inch. The diameter of the 
flange D corresponds to our own prac- 
tice, but this diameter can be varied to 
suit the needs of a customer, provided 
the diameter is not less than that given 
in the table. 



* - J -4 



Diameter. 


Height. 


Diameter 

of 
Opening. 


Diameter 

of 
Flange. 


Diameter 

of 
Bolt Circle. 


Number 

of 
Bolt Holes. 


Diameter 

of 
Bolt Holes 


BOLTS. 


PRICE. 


Diameter. 


Length. 


A 


B 


c 


D 


E 


F 


G 


H 


J 




8 


18 


2% 


6% 


5 


4 


TS 


n 


2% 




10 


22^ 


3% 


8 


6H 


4 


1 1 
16 


H 


2% 




12 


26% 


4H 


10 


81/ 


5 


1 1 

16" 


% 


2^8 




14 


31 


5 


10 


8# 


5 


11 
16" 


H 


■2%, 




16 


36 


5 


10 


81/ 


5 


1 1 
TS 


H 


2% 




18 


41 


6 


11 


9 l A 


6 


11 

16 


% 


2% 




20 


45 


7 


J 3 


n# 


8 


lS 


% 


-1/ 
3A 




22 


5° 


7 


13 


11K 


8 


13 
TS 


% 


3% 




24 


55 


9 


16 


13% 


8 


13 
TS 


% 


3% 





VACUUM-CHAMBERS. 



It is our practice to use the same pattern for vacuum-chambers 
as employed for air-chambers, so that the dimensions will be the 
same for both. 



BARR. PUMPING ENGINE COMPANY. 



129 



COMBINED SIDE-PIPE AND STRAINER, 



For Pumps of 12 and 18 Inches Stroke. 





If the suction-pipe is not provided with a proper strainer at the end from which the water- 
supply is had, a combined side-pipe and strainer, as shown in the engraving, will be useful in 
collecting leaves, twigs, fish, and other floating matter which ought not to pass through the 
pump. The strainer is made of brass wire netting, and can be lifted out through the top of 
the side-pipe by removing the cover. 



Water-Ends 

for which 

Side-Pipes are 

Adapted. 


Diameter 

of 

Suction- 

Pipe. 

A 


Centre 

to 
Centre. 

B 


Face to 
Face. 

Flanges. 
C 


DIAMETERS. 


PRICE. 


Flange. 
A 


Bolt 
Circle. 


Bolt 
Holes. 


Bolts. 


6 x 12 

7 X 12 

8 x 12 

IO X 12 

10 x 18 

12 X 12 

12 x 18 
14 x 12 
14 x 18 


5 

6 
6 
8 

10 
10 
12 
12 
12 


18 

J 9 
20 
22 
26 
26 
28 
28 
28 


15 
15 
16 
16 
20 
20 
22 
22 
22 


10 
11 
11 

13 
16 
16 
18 
18 
18 


8# 

9 1 / 

111/ 

13% 
15% 


11 

T5 

11 
TB 

11 
TB 

13 
16 

h 

H 
H 

if 


5-tt 
6-H 

e-y* 

8-% 
10-K 

10— Vi. 





We can furnish horizontal strainers to attach to the suction-pipe, designs and prices for which will be sent 
en application. 



130 



DUPLEX STEAM PUMPS. 



FOOT-VALVES. 




Our standard foot-valve is shown in the sectional elevation, the 
valve swinging on a throughgoing brass bolt in the centre. The valve 
faces are of leather held in place by brass guards and brass rivets. The 
valve-plate is surfaced so as to make a tight joint. These valves are of 
sufficient strength to allow for leakage passing the valves of the pump, 
but for the larger sizes we can attach a relief-valve on the side of the 
chamber so as to relieve the shell of overpressure. 

We can attach a cast-iron strainer, as shown in the engraving, the 
openings being amply large, so that obstructions, such as twigs, leaves, 
etc., will not prevent the flow of sufficient water through the openings 
to supply the pumping machinery. 



Diameter 

of 
Opening. 


DIAMETERS. 


PRICE. 


Flange. 


Bolt 
Circle. 


Bolt 
Holes. 


Bolts. 


Without 
Strainer. 


With 
Strainer. 


4 
5 
6 

7 
8 

IO 
12 

14 
l6 
l8 
2D 
22 
24 


9 
10 
11 
12 

13 
16 
18 
20 
22 

24 
26 
28 
30 


7 1 / 

n# 

13% 

i8i/ 8 

24^ 
26% 

2sy 8 


11 

TB 

11 
TB 

11 
TB 

13 
TB 

13 
TB 

13 
TB 

13 
IB 

13 
TB 

13 

IB 

15 
TB 

IB 

if 

15 
TB 


s-H 
s-% 

6— V 8 
6-% 

z-U 

8-K 

10— % 

I2-K 

14— % 
16— % 
18— % 
18— Yi 
20 — % 







PARR PUMPING ENGINE COMPANY. 



131 



CHECK-VALVES. 




All of our check-valves have straightway openings, as shown in the 
engraving. The dimension of the chamber is such that a full area of 
opening is had when the valve is on an angle of less than 45 degrees. 
This valve is fitted with a hand-hole plate, so that the condition of the 
valve may be ascertained at any time. The pivot of the valve is a 
throughgoing brass bolt with nuts on the outside, so that it can be with- 
drawn and the valve removed from its seat for examination and repair. 

These valves are extra heavy, and intended for water-works service. 



Diameter 
of 

Opening. 


Length 

End 

to End. 


DIAMETERS. 


PRICE. 


Flanges. 


Bolt 
Centre. 


1 

Bolt 
Holes. 


Bolts. 


4 


11 


9 


1% 


11 

IB 


s-H 




5 


12 


10 


8# 


11 
IS 


5-n 




6 


14 


11 


9Va 


11 
15 


6-H 




7 


15 


12 


™% 


ft 


6-K 




8 


i8J£ 


13 


"K 


1 3 
16 


8-3/ 




10 


21 


16 


13K 


13 
IB 


8-K 




12 


23 


18 


1 5% 


13 
IB 


10-3/ 




H 


26 


20 


i8/ 8 


T§ 


12-34 




16 


3 2 


22 


2oJ/g 


T§ 


14-K 




18 


35 


24 


22J/& 


1 5 


16-% 




20 


38 


26 


24J4 


15 
TB 


18-% 




22 


40 


28 


26H 


15 
TB 


18— % 




24 


42 


30 


2sy s 


15 
TB 


20 — K 








132 



DUPLEX STEAM PUMPS. 



PARTS OF DUPLEX PISTON -PUMPS 



The right side of a pump is determined by standing at the steam-end 
and looking towards the water-end ; that side corresponding to one's 
right hand is the right side, and the other the left side of the pump. 





sWz^z^/^///>,///^^ 



mr mk 



V/-5 J 



u 



*-$-& 



w-e 



V 



The engraving on this page represents a sectional elevation of a 
Duplex Piston-Pump for sizes less than 12 inches stroke, each part 
being numbered. 

Parts belonging to the steam-end and valve-motion have the letter 
"S" prefixed to all numbers, and parts of the water-end have the 
letter "W" prefixed. The symbol and the number are common to 
all pumps, no matter what the size may be. 

The brass linings, marked "W-151," are for all pumps of less than 
12 inches stroke, made of seamless-drawn brass; this is drawn to a 
gauge, but is not sufficiently near to size to make a driving fit without 
slightly reducing the outside of the tube, which can be done by filing 
in a lathe. 

Be careful to specify when ordering parts belonging to the water- 
pistons exactly what kind of piston you have, — that is to say, whether 
for fibrous packing, whether it is fitted with cup-leather packings, or 
with metal packings. This information is to verify our shop register, 
and will save time in furnishing parts. 

The size of a pump and its number will be found cast on the steam- 
chest cover of each pump; these figures should always accompany an 
order, that the pump may be identified on our books and the order 
properly filled. 



BARR PUMPING ENGINE COMPANY. 



133 



LIST OF PARTS OF DUPLEX PISTON-PUMPS 
LESS THAN 12 INCHES STROKE. 

In ordering parts give name, symbol, and number as below ; also, the size 

and shop number of the pump, which will be found 

cast on the steam-chest cover. 



NAME. 



Steam- Cylinders . . . . 

Steam-Chest 

Steam-Chest Cover . . . 
Cylinder- Head (Inside) . 
Cylinder-Head (Outside) 
Steam-Cylinder Foot . . 
Piston-Rod Gland . . . 
Valve-Rod Gland . . . 

Slide- Valve 

Cross- Stand 

Cross-Stand Clamp . . . 

Long Lever 

Short Lever ...... 

Lower-Rock Shaft . . . 
Upper- Rock Shaft . . . 
Valve-Rod Head . . . 
Valve-Rod Link (Short) . 
Valve-Rod Link (Long) . 
Cross-Head Pin . . . . 

Cross-Head 

Piston 

Piston-Rings 

Bed-Plate 



Piston-Rod 

Piston-Rod Nut 

Tie-Rod 

Tie-Rod Nut 

Valve-Rod 

Slide- Valve Nut 

Valve-Rod Head-Pin and Nut 
Cross-Head Set-Screw .... 
Rocker- Arm Pin and Nut . . 
Drain-Cock 



1 
2 

3 
4 

5 
6 

7 
8 

9 

10 
11 
12 
13 
14 
15 
16 

17 

18 

19 
20 
21 

23 
29 



150 
151 
152 
153 
155 
156 

157 
160 
161 
162 



NAME. 



Water-Cylinder 

Valve-Plate 

Force-Chamber 

Inside Head . . . . 

Outside Head 

Water- Cylinder Foot 

Piston-Rod Gland 

Water-Piston 

Water- Piston Follower 

Delivery-Flange 

Suction-Flange (Tapped) 

Suction-Flange (Blank) 

Hand- Hole Plate (Force Chamber) 

Hand-Hole Plate (Body) 

Valve-Seat 

Valve-Nut 

Valve 

Valve-Plate Brass Nut 

Water-Piston Nuts 

Piston-Rod Socket- Wrench . . . . 

Valve-Spring 

Brass Lining 

Copper Air- Chamber 



w 


I 


w 


2 


w 


3 


w 


4 


w 


5 


w 


6 


w 


7 


w 


8 


w 


9 


w 


10 


w 


11 


w 


12 


w 


17 


w 


18 


w 


20 


w 


21 


w 


22 


w 


23 


w 


24 


w 


72 


w 


150 


w 


151 


w 


152 



The symbol " S" relates to steam-end and valve-motion. The symbol " W" relates to water-end. 



134 



DUPLEX STEAM PUMPS. 



PARTS OF DUPLEX PLUNGER-PUMPS. 



The right side of a pump is determined by standing at the steam-end 
and looking towards the water-end ; that side corresponding to one's 
right hand is the right side, and the other the left side of a pump. 




c 




"3$—^- 



-2-6 




The engraving on this page represents a sectional elevation of a 
Duplex Plunger-Pump for all sizes less than 12 inches stroke, each 
part being numbered. 

Parts belonging to the steam-end and valve-motion have the letter 
"S" prefixed to all numbers, and parts of the water-end have the 
letter "W" prefixed. The symbol and the number are common to 
all pumps, no matter what the size may be. 

The plunger-rings fit in bored recesses in the water-cylinders, and 
as these are made to gauge any ring will fit its water-cylinder. 

In ordering new rings to fit an old plunger allowance should be 
made for turning off the plunger, and any such allowance for refitting 
should be correctly stated in any orders for new plunger-rings. 

When both plunger and ring are ordered at one time they will be 
fitted to each other before leaving our works. 

The size of a pump and its number will be found cast on the steam- 
chest cover of each pump ; these figures should always accompany an 
order, that the pump may be identified on our books and the order 
properly filled. 



' 



BARR PUMPING ENGINE COMPANY. 



135 



LIST OF PARTS OF DUPLEX PLUNGER-PUMPS 
LESS THAN 12 INCHES STROKE. 

In ordering parts give name, symbol, and number as below ; also, the size 

and shop number of the pump, which will be found 

cast on the steam-chest cover. 



NAME. 



Steam- Cylinders . . . . 

Steam-Chest 

Steam-Chest Cover . . . 
Cylinder- Head (Inside) . 
Cylinder-Head (Outside) 
Steam-Cylinder Foot . . 
Piston- Rod Gland . . . 
Valve-Rod Gland . . . 

Slide-Valve 

Cross-Stand 

Cross- Stand Clamp . . . 

Long Lever 

Short Lever ...... 

Lower- Rock Shaft . . . 
Upper- Rock Shaft . . . 
Valve-Rod Head . . . 
Valve-Rod Link (Short) . 
Valve-Rod Link (Long) . 
Cross- Head Pin . . . . 

Cross-Head 

Piston 

Piston- Rings 

Bed-Plate 



Piston-Rod 

Piston-Rod Nut 

Tie-Rod 

Tie-Rod Nut 

Valve-Rod 

Slide-Valve Nut 

Valve-Rod Head-Pin and Nut 
Cross-Head Set-Screw .... 
Rocker- Arm Pin and Nut . . 
Drain-Cock 



I 

2 

3 
4 

5 
6 

7 
8 

9 
10 

11 

12 

13 

14 

15 

16 

17 

18 

19 
20 
21 

23 
29 



150 
151 
152 
153 
155 
156 

157 
160 
161 
162 



NAME. 



Water-Cylinder 

Valve-Plate 

Force- Chamber 

Inside Head 

Outside Head 

Water- Cylinder Foot 

Piston-Rod Gland 

Deli very- Flange 

Suction-Flange (Tapped) 

Suction-Flange (Blank) 

Plunger 

Plunger-Ring 

Hand- Hole Plate (Pbrce Chamber) 

Hand-Hole Plate (Body) 

Valve-Seat 

Valve-Nut 

Valve 

Valve-Plate Brass Nut 

Water- PI unger Nuts ....... 

Plunger-Ring Tap- Bolts 

Piston-Rod Socket- Wrench .... 

Valve-Spring 

Brass Lining 

Copper Air- Chamber 





S3 


WP 


I 


w 


2 


w 


3 


WP 


4 


WP 


5 


w 


6 


w 


7 


w 


10 


w 


11 


w 


12 


w 


13 


w 


14 


w 


17 


w 


18 


w 


20 


w 


21 


w 


22 


w 


23 


w 


24 


w 


58 


w 


72 


w 


150 


w 


151 


w 


152 



The symbol " S" relates to steam-end and valve-motion. The symbol " W" relates to water-end. 



136 



DUPLEX STEAM PUMPS. 



PARTS OF DUPLEX PISTON-PUMPS OF 12 INCHES 



STROKE. 




Oh 

in H 



u 
pa 



<u <u 
ii * 



> 

S3 
o 



•fl S 



S3 ~ 

CS (V) 

>. - ^ 

3 a> rt 

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2 -^ £ 



Cj 

> 

$3 
cj 

*d 
S3 
<u 

g 

C3 



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S3 



y 

c 

3S 
O 






S3 T3 

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o 



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<o O 



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* I 

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Oh O 



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£ "J £ 

£ rt p 

1) f ^ 

,£> J; O, 

£ CS -« 

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<+* "^ '— 

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o IS 




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BARE PUMPING ENGINE COMPANY. 



137 



LIST OF PARTS OF DUPLEX PISTON-PUMPS 
OF 12 INCHES STROKE. 

In ordering parts give name, symbol, and number as below ; also, the size and shop number of 
the pump, which will be found cast on the steam-chest cover. 



NAME. 



Steam-Cylinder 

Steam- Chest 

wSteam-Chest Cover 

Steam-Cylinder Head (Inside) 
Steam-Cylinder Head ( Outside) 
Steam-Cylinder Foot .... 

Piston- Rod Gland 

Valve-Rod Gland 

Slide- Valve 

Cross-Stand 

Cross- Stand Clamp 

Long Lever 

Short Lever 

Valve- Rod Head 

Valve-Rod Link (Short) . . . 
Valve-Rod Link (Long). . . . 

Cross-Head Pin 

Cross-Head 

Piston 

Piston- Rings 

Exhaust-Tee 

Steam-Pipe 

Exhaust-Blank Flange . . . 
Upper Rocker-Arm .... 
Lower Rocker-Arm .... 
Bed-Plate 



Piston-Rod 

Piston-Rod Nut ...... 

Tie-Rod 

Tie-Rod Nut 

Tie-Rod Key 

Valve-Rod 

Slide- Valve Nut 

Valve-Rod Head-Pin and Nut 

Rock-Shaft 

Cross-Head Set-Screw .... 
Rocker- Arm Pin and Nut . . 
Drain-Cock 



S 
S 
S 
S 
S 

s 

S 
S 

s 
s 
s 
s 
s 
s 
s 
s 
s 
s 
s 
s 
s 
s 
s 
s 
s 
s 



I 

2 

3 

4 

5 
6 

7 
8 

9 
10 
11 
12 

13 

16 

17 

18 

19 
20 
21 

23 
24 

25 
26 
27 
28 
29 



150 
151 
152 
153 

154 

155 
156 

157 
158 
160 
161 
162 



NAME. 



Water- Cylinder 

Force- Chamber 

Inside Water-Cylinder Head . . . 
Outside Water-Cylinder Head . ... 

Water- Cylinder Foot 

Piston-Rod Gland 

Packed Water-Piston 

Packed Water- Piston Follower . . 

Delivery-Tee 

Suction -Pipe 

Hand-Hole Plate (Force Chamber) 

Hand-Hole Plate (Body) 

Valve-Seat 

Valve-Nut 

Valve 

Water-Piston Nuts 

Piston-Rod Socket- Wrench .... 
Valve-Spring 



w 


I 


w 


3 


w 


4 


w 


5 


w 


6 


w 


7 


w 


8 


w 


9 


w 


15 


w 


16 


w 


17 


w 


18 


w 


20 


w 


21 


w 


22 


w 


24 


w 


72 


w 


150 



• $-3e 




The symbol "S" relates to steam-end and valve-motion. The symbol "W" relates to water-end. 



138 



DUPLEX STEAM PUMPS. 



PARTS OF DUPLEX PLUNGER-PUMPS OF 12 INCHES 



STROKE. 




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CO H 



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BARR PUMPING ENGINE COMPANY. 



I 39 



LIST OF PARTS OF DUPLEX PLUNGER-PUMPS 
OF 12 INCHES STROKE. 

In ordering parts give name, symbol, and number as below ; also, the size and shop number of 
the pump, which will be found cast on the steam-chest cover. 



NAME. 



Steam-Cylinder 

Steam- Chest 

Steam-Chest Cover 

Steam-Cylinder Head (Inside) 
Steam-Cylinder Head (Outside) 
Steam-Cylinder Foot .... 

Piston- Rod Gland 

Valve-Rod Gland 

Slide-Valve 

Cross- Stand 

Cross- Stand Clamp 

Long Lever 

Short Lever 

Valve -Rod Head 

Valve-Rod Link (Short) . . . 
Valve -Rod Link (Long) . . . 

Cross-Head Pin 

Cross-Head 

Piston 

Piston-Rings 

Exhaust-Tee 

Steam-Pipe 

Exhaust-Blank Flange .... 

Upper Rocker-Arm 

Lower Rocker- Arm 

Bed- Plate 

Piston-Rod 

Piston-Rod Nut 

Tie-Rod 

Tie-Rod Nut 

Tie-Rod Key 

Valve-Rod 

Slide- Valve Nut 

Valve-Rod Head-Pin and Nut 

Rock-Shaft 

Cross-Head Set-Screw . . . , 
Rocker- Arm Pin and Nut . . 
Drain-Cock 



"0 

a 

09 


Number. 

M 


s 


s 


2 


s 


3 


s 


4 


s 


5 


s 


6 


s 


7 


s 


8 


s 


9 


s 


10 


s 


11 


s 


12 


s 


13 


s 


16 


s 


J 7 


s 


18 


s 


19 


s 


20 


s 


21 


s 


23 


s 


24 


s 


25 


s 


26 


s 


27 


s 


28 


s 


29 


s 


150 


s 


151 


s 


152 


s 


153 


s 


154 


s 


155 


s 


156 


s 


157 


s 


158 


s 


160 


s 


161 


s 


162 



NAME. 



Water- Cylinder 

Force- Chamber 

Inside Water-Cylinder Head . . . 
Outside Water- Cylinder Head . . . 

Water- Cylinder Foot t 

Piston-Rod Gland 

Plunger 

Plunger-Ring 

Delivery-Tee 

Suction-Pipe 

Hand-Hole Plate (Force Chamber) 

Hand-Hole Plate (Body) 

Valve-Seat 

Valve-Nut 

Valve 

Water-Plunger Nuts 

Piston-Rod Socket- Wrench . . . . 
Valve-Spring 



w 


I 


w 


3 


w 


4 


w 


5 


w 


6 


w 


7 


w 


13 


w 


14 


w 


15 


w 


16 


w 


17 


w 


18 


w 


20 


w 


21 


w 


22 


w 


24 


w 


72 


w 


150 



-$-26 




The symbol "S" relates to steam-end and valve-motion. The symbol " W" relates to water-end. 



INDEX. 



PAGE 

Acids, Valves for 17 

Air- and Circulating-Pumps Com- 
bined 73 

Air-Chambers, Table of 128 

Air-Compressors "...116 

Air-Pump and Boiler- Feed Com- 
bined 72, 73 

Air-Pumps . ■ 69 

Alkaline Liquor, Valves for ... 17 

Ammonia Gas- Pumps 116 

Artesian Pump-Rod Couplings . . .110 
Artesian Pumps, Varieties of Water- 
End 108 

Artesian-Well Pumps, Table of 

Steam-Ends 107 

Artesian- Well Pumps, Table of 

Water-Ends 109 

Ash Pump- Rods 110 

Automatic Feed-Pump and Receiver . 105 

Ballast-Pumps 71 

Ball- Valves, Pumps with 117 

Bell and Flange Combined . . . .124 

Bilge-Pumps 71 

Bleacher y, Pumps for 16 

Boiler-Base, with Shaking-Grate . 48 
Boiler Feed-Pumps, Piston Pattern . 8 
Boiler Feed-Pumps, Plunger Pat- 
tern 6, 7 

Bolting of Pump to Foundation . . 29 

Brewery-Pumps 31 

Brine-Pumps 30 

Centrally- Pack ed Plunger-Pump . . 11 

Charging-Pipe 29 

Check-Valves, Table of 131 

Circulating-Pump 70 



PAGE 

Combined Duplex Pump and Boiler . 47 
Compound Pumps, 18 and 24 Inches 

Stroke 57 

Compound Pumps, High-Service At- 
tachment 53 

Compound Steam-Pumps 52 

Compound Steam- Pumps, Ratio of 

Cylinders 55 

Compound Steam-Pumps, Table of . 55 

Compounding, Economy in 52 

Condensation 59 

Condenser, Gain by the Use of . . 59 
Condenser, Injection- Water .... 61 
Condenser, Ltft of Injection-Water, 65 
Condenser, Temperature of Dis- 
charge 61 

Condenser, Utilizing Discharge- 
Water 61 

Condensing Apparatus 59 

Condensing Apparatus, Piping for . 65 
Condensing Apparatus, Suggestion 

relating to 63 

Condensing Apparatus, Table of 

Sizes 63 

Condensing Apparatus Vertical Air- 
Pump 66,67 

Contractors' Pumps 49, 5 1 

Country Residences, Pumps for . . 49, 51 
Couplings for Artesian Pump-Rods, iio 
Crank and Fly- Wheel Vacuum- Pump, 115 

Crosses, Flanged 123 

Deep- Well Pumps 106 

Deep- Well Pumps, Varieties of . . 108 

Delivery Tees, Flanged 122 

Designs, Subject to Change .... 4 

141 



142 



INDEX. 



PAGE 

Double-Effect Pumps 112,113 

Drainage Apparatus 105 

Duplex Pump, Operation of ... . 4 

Dye-House Pumps 9 

Elbows, Flanged 120 

Electrical- Pumps 80,81 

Elevator-Pumps 13 

Erecting and Piping a Pump .... 29 
Extra Finish for Steam- Ends ... 53 

Filter-Press Pump 117 

Fire-Hose Connections, Number of . 39 

Fire-Pump, Delivery-Pipe 35 

Fire-Pump, Delivery-Tees 40 

Fire-Pump, Piston Speed 34 

Fire-Pump, Suction-Pipe 35 

Fire-Pump, the Underwriter ... 41 
Fire-Pump, Vacuum-Chambers for . . 35 

Fire-Pump Valve-Gear ^3 

Fire-Pumps 23 

Fire-Pumps, Location of Valves . . 33 

Fire-Pumps, Table of 37 

Fire-Streams 34, 38 

Flange and Bell Combined . . . .124 
Flange and Spigot Combined . . .125 

Flanged Crosses 123 

Flanged Delivery- Tees 122 

Flanged Elbows 120 

Flanged Suction-Tees 122 

Flanged Pipe 126 

Flanged Tees 121 

Flanges for Wrought-Iron Pipe . .127 

Foot- Valves, Table of 130 

Foundation, Best Material for . . 29 

Foundation for Pumps 29 

Freeman, J. R., Quoted . . . . . . 38, 39 

Gas-Pumps 116 

Hot-Water Valves 17 

House-Pumps 9 

Irrigating-Pumps 71 

Laundry-Pumps 9 

Low-Service Pumps less than 12 
Inches Stroke 9 



Low-Service Pumps, 12 Inches Stroke, 16 

Marine-Pumps 13 

Mine-Pumps, 18 Inches Stroke . 100, 101 
Mine- Pumps, 24 and 36 Inches 

Stroke 102, 103 

Mine-Pumps, Centrally- Packed 

Plungers 98,99 

Mine-Pumps, Piston Pattern . . .96, 97 

Nozzles, Discharge of 39 

Oil-Line Pumps 119 

Oil-Pumps 118 

Oil-Refinery Pumps 9, 16 

Petroleum-Pumps 9,16,118 

Pipe, Flanged, Cast-Iron 126 

Pipe Flanges for Wrought Pipe . .127 

Piston-Pumps 14, 15 

Piston- Pumps, Parts of . 132, 133, 136, 137 

Pistons, Description of 10 

Piston Speed for Various Strokes . 5 
Planished Iron Lagging for Steam- 
Cylinders 53 

Plunger-Pump, Inside-Packed . . . 18, 19 
Plunger-Pump, Sectional Elevation 

of 12 

Plunger-Pump, 12 Inches Stroke . . 13 
Plunger- Pump, 18 and 24 Inches 

Stroke 26,27 

Plunger-Pumps,Centrally-Packed, 22, 23 
Plunger-Pumps, Outside-Packed . 20, 21 
Plunger-Pumps, Outside- Packed, 

Parallel Rods 24, 25 

Plunger- Pumps, Parts of, 134, 135, 138, 139 

Plunger-Ring 13 

Power- Pumps, Geared 78, 79 

Power- Pumps, Three- Throw . . .80,81 
Power-Pumps, with Centrally- 
Packed Plungers 76, 77 

Pressure Pumps 82 

Pressure Pumps less than 12 Inches 

Stroke 84,85 

Pressure Pumps, 12 Inches Stroke, 86,87 
Pressure Pumps, 18 Inches Stroke, 88,89 



INDEX. 



143 



PAGE 

Pressure Pumps, 24 Inches Stroke, 90,91 
Pressure Pumps, 36 Inches Stroke, 92, 93 
Pressure Pump Valves and Seats . . 83 

Print-Works Pumps 9, 16 

Pumps 18 and 24 Inches Stroke . 26, 27 

Pump-Rods no 

Quarries, Pumps for 49, 51 

Railroad Water- Station Pumps, 

9, 16,49, 5 1 

Relief- Valves 29 

Removable Linings 14 

Seaside Hotels, Pumps for . . .49,51 

Sewerage Pumping-Engine 104 

Side- Pipe and Strainer 129 

Sinking Pumps 94, 95 

Spigot and Flange Combined .. . . .125 
Steam-Heating Receiver and Auto- 
matic Pump 105 

Steam- Heating, Vacuum-Pump for . .111 

Steam-Jackets 53 

Strainer and Side-Pipe 129 

Stroke, Length of 5 

Strokes for Piston Speed 5 

Suction- Pipe, Length of 29 

Suction-Tees, Flanged 122 

Sugar-House Pump, Ball-Valves . .117 

Sugar-Makers' Pumps 111-115 

Surface Condensers 75 

Surface Condensers and Pump Com- 
bined 75 

Surface Condensers, Circulating- 
Pumps for 70 

Surface Condensers, Pumps for ... 69 

Syrup Pump 117 

Tannery-Pumps 32 

Tees, Flanged 121 



PAGE 

Three-Throw Pumps 80,81 

Triple-Effect Pumps 112,113 

Underwriter Fire-Pump 41 

Underwriter Fire-Pump, Brass Fit- 
ting 42 

Underwriter Fire-Pump, Capacity- 
Plate 43 

Underwriter Fire-Pump, Delivery- 
Valves 42 

Underwriter Fire- Pump, Illustra- 

I TION OF 44 

Underwriter Fire-Pump, List of At- 
tachments 46 

Underwriter Fire-Pump, Location 

of Valves 42 

Underwriter Fire-Pump, Pressure- 

Gauge 43 

Underwriter Fire-Pump, Relief- 

Valve 43 

Underwriter Fire-Pump, Sizes of . . 45 
Underwriter Fire-Pump, Suction- 
Valves 42 

Vacuum-Chamber 29 

Vacuum-Chambers, Table of . . . .128 

Vacuum-Pumps 69 

Vacuum-Pumps, Direct- Acting . . .111 
Vacuum-Pumps, with Crank and Fly- 
wheel 114, 115 

Valves, Varieties of 17 

Valve- Seats, Description of ... . 17 
Vertical Boilers, Specifications for, 47 
Walnut Lagging for Steam-Cylin- 
ders 53 

Water of Condensation 29 

Water- Works Pumps 13, 58 

Wrecking-Pumps 7 1 



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